WI

Workers IO

Simulation-testing company: runs a customer's whole system unmodified inside deterministic virtual machines, injects network faults, disk failures, crashes and clock drift across millions of scenarios, and returns each broken requirement as a replayable case, including as feedback for coding agents.

StageUndisclosed

Founded2026

HeadquartersSan Francisco, USA

StatusPrivate

Product

Selected offerings — the AI products recorded here, not the vendor's full catalogue.

• Workers IO simulation platform Platform Sold on its own

  Deterministic-simulation testing platform that runs a customer's system unmodified in virtual machines, searches millions of interleavings, faults and timings for the conditions that break its stated requirements, and returns every failure as a reproducible case with its injected faults and execution trace; a coding-agent feedback loop verifies each agent change under the same scenarios. Professional is $2,500 per month with 2,500 simulation hours and $3.60 per extra hour; Enterprise is a custom annual contract.

Similar products 92

No sourced competitor yet: no filing, vendor document or measured-market report read so far names a rival for this company, so none is asserted. The companies below are the closest by what their products do.

How this list is ranked ↗

IImbueLate-stageWorkers IO simulation platform and Blueprint both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships application and developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareALAkon LabsUndisclosedWorkers IO simulation platform and GitNexus both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent and developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareBBoxes.devUndisclosedWorkers IO simulation platform and Boxes.dev both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareGGuild.aiUndisclosedWorkers IO simulation platform and Guild Software Factory both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships agent platform and developer tool rather than the same layer.2 of 2 capabilitiesDifferent layerCompareAAmikaUndisclosedWorkers IO simulation platform and Amika cloud devboxes both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships agent platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareOOpenRouterLate-stageWorkers IO simulation platform and Ori both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, developer tool and 1 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareSSnowflakePublicWorkers IO simulation platform and Snowflake CoCo both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareHHopliteUndisclosedWorkers IO simulation platform and Hoplite PR Auto-fix both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent and agent platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareSSupersetUndisclosedWorkers IO simulation platform and Superset Automations both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent and developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareBByteAskUndisclosedWorkers IO simulation platform and ByteAsk both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent rather than the same layer.1 of 2 capabilitiesDifferent layerCompareCClineEarly-stageWorkers IO simulation platform and Cline both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent and developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareCCursorAcquiredWorkers IO simulation platform and Cursor CLI both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; Cursor is acquired, with no independent scale; ships AI agent, application and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareGGitLabPublicWorkers IO simulation platform and GitLab Duo CLI both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareGGitarAcquiredWorkers IO simulation platform and Gitar both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; Gitar is acquired, with no independent scale; ships AI agent rather than the same layer.1 of 2 capabilitiesDifferent layerCompareCMComet MLEarly-stageWorkers IO simulation platform and Ollie both list agentic coding; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareRReflectionLate-stageWorkers IO simulation platform and Mirror CLI both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships developer tool and model API rather than the same layer.1 of 2 capabilitiesDifferent layerCompareHCHuawei CloudUndisclosedWorkers IO simulation platform and CodeArts Agent both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareAFAmp Frontier CorporationUndisclosedWorkers IO simulation platform and Orbs both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent and developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareFFactoryLate-stageWorkers IO simulation platform and Factory Missions both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, developer tool and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareKCKilo CodeAcquiredWorkers IO simulation platform and Kilo Cloud Agents both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; Kilo Code is acquired, with no independent scale; ships AI agent, API service and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareSStackBlitzUndisclosedWorkers IO simulation platform and Bolt.new both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareZZivashUndisclosedWorkers IO simulation platform and Ziva both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareCCognitionLate-stageWorkers IO simulation platform and Fusion both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, application and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareAAnacondaLate-stageWorkers IO simulation platform and AI Workspaces both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.2 of 2 capabilitiesShared product typeCompareVVercelLate-stageWorkers IO simulation platform and Vercel Agent both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, API service and 2 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareDDatadogPublicWorkers IO simulation platform and Bits Code both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, API service and 3 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareSSonarLate-stageWorkers IO simulation platform and SonarQube both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent and developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareW&Weights & BiasesAcquiredWorkers IO simulation platform and W&B Skills both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; Weights & Biases is acquired, with no independent scale.2 of 2 capabilitiesShared product typeCompareZIZed IndustriesEarly-stageWorkers IO simulation platform and Zed both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareBABlackbox AIUndisclosedWorkers IO simulation platform and Blackbox Agents API both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent, API service and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareRRadiusUndisclosedWorkers IO simulation platform and Radius both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships application rather than the same layer.1 of 2 capabilitiesDifferent layerCompareFDFifth DoorUndisclosedWorkers IO simulation platform and Fifth Door both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships application rather than the same layer.1 of 2 capabilitiesDifferent layerCompareGGreptileUndisclosedWorkers IO simulation platform and TREX both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareGGraphideUndisclosedWorkers IO simulation platform and Graphide both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareJJcodeUndisclosedWorkers IO simulation platform and Jcode both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareJJetBrainsUndisclosedWorkers IO simulation platform and Junie both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent, agent platform and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareBBridgeMindUndisclosedWorkers IO simulation platform and BridgeMind both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships agent platform and application rather than the same layer.1 of 2 capabilitiesDifferent layerCompareAHAll Hands AIEarly-stageWorkers IO simulation platform and OpenHands both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent, agent platform and 1 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareRRindlerUndisclosedWorkers IO simulation platform and Maxxwell both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships application rather than the same layer.1 of 2 capabilitiesDifferent layerCompareLLinzumiUndisclosedWorkers IO simulation platform and Linzumi both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships application rather than the same layer.1 of 2 capabilitiesDifferent layerCompareRReplitLate-stageWorkers IO simulation platform and Replit both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeComparePAPoolside AILate-stageWorkers IO simulation platform and poolside both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent and agent platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareACAugment CodeLate-stageWorkers IO simulation platform and Auggie CLI both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent and developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareLLovableLate-stageWorkers IO simulation platform and Lovable both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareCCodeRabbitLate-stageWorkers IO simulation platform and CodeRabbit Agent for Slack both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent and developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareAAlibabaPublicWorkers IO simulation platform and Qoder CN both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.2 of 2 capabilitiesShared product typeCompareDIDeep InteractionsUndisclosedWorkers IO simulation platform and Deep Interactions both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships application rather than the same layer.1 of 2 capabilitiesDifferent layerCompareLGLLM GatewayUndisclosedWorkers IO simulation platform and DevPass both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships API service and application rather than the same layer.2 of 2 capabilitiesDifferent layerCompareRRoomoteUndisclosedWorkers IO simulation platform and Roomote both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent rather than the same layer.1 of 2 capabilitiesDifferent layerCompareEEmergentLate-stageWorkers IO simulation platform and Emergent both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareSStepFunLate-stageWorkers IO simulation platform and Step Code both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, API service and 3 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareMMosaicUndisclosedWorkers IO simulation platform and Mosaic both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareZZ.ai (Zhipu AI)PublicWorkers IO simulation platform and GLM Coding Plan both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, application and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareSSAPPublicWorkers IO simulation platform and SAP Joule for Developers both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.2 of 2 capabilitiesShared product typeCompareMMastraEarly-stageWorkers IO simulation platform and Mastra Code both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent, API service and 3 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareQLQuotient LabsUndisclosedWorkers IO simulation platform and Fermat's Last Token both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareSServiceNowPublicWorkers IO simulation platform and Build Agent both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.2 of 2 capabilitiesShared product typeCompareMAMistral AILate-stageWorkers IO simulation platform and Mistral Vibe Code both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareHIhardware intelligenceUndisclosedWorkers IO simulation platform and Wave both serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.1 of 2 capabilitiesDifferent layerCompareAAtlassianPublicWorkers IO simulation platform and Jira Coding Agent both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, API service and 3 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareBByteDanceUndisclosedWorkers IO simulation platform and TraeCode both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ByteDance's scale not comparable: only a revenue estimate, no market cap or valuation.2 of 2 capabilitiesShared product typeCompareIIBMPublicWorkers IO simulation platform and IBM watsonx Code Assistant for Z both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.2 of 2 capabilitiesShared product typeCompareAAccenturePublicWorkers IO simulation platform and GenWizard both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareKKuaishouPublicWorkers IO simulation platform and CodeFlicker both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareMMentlioUndisclosedWorkers IO simulation platform and Mentlio both list agentic coding; scale not recorded for either; ships application rather than the same layer.2 of 2 capabilitiesDifferent layerCompareMAMoonshot AILate-stageWorkers IO simulation platform and Kimi Code both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, agent platform and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareAAlphabet (Google)PublicWorkers IO simulation platform and Google Antigravity both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.2 of 2 capabilitiesShared product typeCompareSShopifyPublicWorkers IO simulation platform and Shopify AI Toolkit both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareBBaiduPublicWorkers IO simulation platform and Baidu Comate both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareXxAIAcquiredWorkers IO simulation platform and Grok Build both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; xAI is acquired, with no independent scale; ships AI agent, API service and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareMPMeta PlatformsPublicWorkers IO simulation platform and Muse Code both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, agent platform and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareDDatabricksLate-stageWorkers IO simulation platform and Genie Code both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.2 of 2 capabilitiesShared product typeCompareMMiniMaxPublicWorkers IO simulation platform and MiniMax Code both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, application and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareYYandexPublicWorkers IO simulation platform and SourceCraft Code Assistant both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareAApproximaUndisclosedWorkers IO simulation platform and Approxima both serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent rather than the same layer.Different layerCompareOOpenCodeUndisclosedWorkers IO simulation platform and OpenCode both list agentic coding; both also serve buyers who need to code with an AI assistant; scale not recorded for either; ships AI agent and API service rather than the same layer.1 of 2 capabilitiesDifferent layerCompareAAmazonPublicWorkers IO simulation platform and AWS Transform both serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.2 of 2 capabilitiesShared product typeCompareTTencentPublicWorkers IO simulation platform and CodeBuddy both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareFFreshworksPublicWorkers IO simulation platform and Freddy AI Copilot for Developers both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.1 of 2 capabilitiesShared product typeCompareOOpenAILate-stageWorkers IO simulation platform and Codex both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, API service and 3 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareAAnthropicLate-stageWorkers IO simulation platform and Claude Agent SDK both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, agent platform and 3 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareLLangWatchUndisclosedWorkers IO simulation platform and Langy both list agentic coding; scale not recorded for either; ships AI agent, API service and 2 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareDDeepSeekLate-stageWorkers IO simulation platform and DeepSeek Harness both list agentic coding; Workers IO's scale not recorded; ships application, developer tool and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareMMicrosoftPublicWorkers IO simulation platform and GitHub Copilot both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded.2 of 2 capabilitiesShared product typeCompareCConiferUndisclosedWorkers IO simulation platform and Parallax both serve buyers who need to code with an AI assistant; scale not recorded for either; ships API service, application and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareHHarnessLate-stageWorkers IO simulation platform and Harness Platform both list agentic coding; scale not recorded for either.2 of 2 capabilitiesShared product typeCompareSSourcebotUndisclosedWorkers IO simulation platform and Sourcebot both serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.Different layerCompareAAssembleUndisclosedWorkers IO simulation platform and Assemble both list agentic coding; scale not recorded for either; ships AI agent rather than the same layer.1 of 2 capabilitiesDifferent layerCompareAAAutomation AnywhereUndisclosedWorkers IO simulation platform and Automator AI both serve buyers who need to code with an AI assistant; scale not recorded for either.1 of 2 capabilitiesShared product typeCompareGGensparkLate-stageWorkers IO simulation platform and GenTerminal both serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; ships AI agent, application and 2 more rather than the same layer.Different layerCompareBBase44AcquiredWorkers IO simulation platform and Base Code both list agentic coding; both also serve buyers who need to code with an AI assistant; Workers IO's scale not recorded; Base44 is acquired, with no independent scale.1 of 2 capabilitiesShared product typeCompareVLVelum LabsUndisclosedWorkers IO simulation platform and RouteKit both serve buyers who need to code with an AI assistant; scale not recorded for either; ships developer tool rather than the same layer.Different layerCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Total funding

Not found · 22 Oct 2026

Pages read for this record state no funding total. Tried the home, pricing, security, terms and privacy pages (browser read 2026-10-22) and the company's YC profile.

Valuation

Not found · 22 Oct 2026

Pages read for this record state no valuation. Tried the home, pricing, security, terms and privacy pages (browser read 2026-10-22) and the company's YC profile.

Founded

Company disclosure · 22 Oct 2026

Own YC profile lists Founded: 2026; workers.io states no founding year. Its terms and privacy notice name the entity 10XU INC, doing business as Workers IO; the entity is as the pages state it, not confirmed against a registry.

Public listing

Not found · 22 Oct 2026

No listing on the pages read; treated as private.

Description

Company disclosure · 22 Oct 2026

Own YC profile: "Workers IO is building simulation environments to catch failures in mission-critical software before they reach production."

Open Workers IO in the directory

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