G

Gradium

Gradium provides speech generation, transcription, and translation models and infrastructure for developers and enterprises building voice applications.

StageLate-stage

Founded2025

HeadquartersParis, France

StatusPrivate

Product

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

• Text-to-Speech Model API Sold on its own

  Gradium's Text-to-Speech converts text into streaming speech for voice applications.

Similar products 49

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 ↗

NNeuphonicUndisclosedText-to-Speech and NeuTTS-2M both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships developer tool rather than the same layer.1 of 1 capabilityDifferent layerCompareHAHume AIUndisclosedText-to-Speech and Octave TTS both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service, application and 3 more rather than the same layer.1 of 1 capabilityDifferent layerCompareRRimeUndisclosedText-to-Speech and Mist / Coda both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service rather than the same layer.1 of 1 capabilityDifferent layerCompareWLWellSaid LabsUndisclosedText-to-Speech and WellSaid API both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service and application rather than the same layer.1 of 1 capabilityDifferent layerCompareSSpeechmaticsUndisclosedText-to-Speech and Text to Speech both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service and developer tool rather than the same layer.1 of 1 capabilityDifferent layerCompareSSpeechifyUndisclosedText-to-Speech and SpeechifyAI both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships AI agent, API service and 1 more rather than the same layer.1 of 1 capabilityDifferent layerCompareDDeepgramLate-stageText-to-Speech and Deepgram Flux TTS both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships API service rather than the same layer.1 of 1 capabilityDifferent layerCompareNCNAVER CloudUndisclosedText-to-Speech and CLOVA Voice both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service, application and 1 more rather than the same layer.1 of 1 capabilityDifferent layerCompareMAMurf AIEarly-stageText-to-Speech and Murf TTS Reader both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service and application rather than the same layer.1 of 1 capabilityDifferent layerCompareIAInworld AIUndisclosedText-to-Speech and Realtime TTS both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either.1 of 1 capabilityShared product typeCompareEElevenLabsLate-stageText-to-Speech and ElevenLabs Text to Speech both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships API service, agent platform and 1 more rather than the same layer.1 of 1 capabilityDifferent layerCompareHHopperUndisclosedText-to-Speech and Hopper both list text to speech; scale not recorded for either.1 of 1 capabilityShared product typeCompareRRunPodLate-stageText-to-Speech and Public Endpoints both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareSSonioxUndisclosedText-to-Speech and Soniox Text-to-Speech API both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service and application rather than the same layer.1 of 1 capabilityDifferent layerCompareCCerencePublicText-to-Speech and Cerence Text-to-Speech both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships AI agent, application and 2 more rather than the same layer.1 of 1 capabilityDifferent layerCompareRAResemble AIEarly-stageText-to-Speech and Security Awareness Training both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service and application rather than the same layer.1 of 1 capabilityDifferent layerCompareRRespeecherEarly-stageText-to-Speech and Respeecher Space both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service and application rather than the same layer.1 of 1 capabilityDifferent layerCompareCCartesiaEarly-stageText-to-Speech and Sonic / Ink both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service and agent platform rather than the same layer.1 of 1 capabilityDifferent layerCompareSSpekoUndisclosedText-to-Speech and Speko both list text to speech; scale not recorded for either; ships API service rather than the same layer.1 of 1 capabilityDifferent layerCompareSASarvam AILate-stageText-to-Speech and Sarvam Text to Speech both list text to speech; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareIIBMPublicText-to-Speech and IBM Watson Text to Speech both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships API service, agent platform and 4 more rather than the same layer.1 of 1 capabilityDifferent layerCompareTTencentPublicText-to-Speech and Tencent Cloud TTS both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareSStepFunLate-stageText-to-Speech and StepFun Open Platform both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareAAlphabet (Google)PublicText-to-Speech and Cloud Text-to-Speech both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareAAmazonPublicText-to-Speech and Amazon Polly both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareMMiniMaxPublicText-to-Speech and MiniMax Open Platform both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareAAssemblyAILate-stageText-to-Speech and AssemblyAI Voice Agent API both list text to speech; ships API service and application rather than the same layer.1 of 1 capabilityDifferent layerSame scale bandCompareFRFurhat RoboticsUndisclosedText-to-Speech and Furhat robot both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships application, platform and 1 more rather than the same layer.1 of 1 capabilityDifferent layerCompareMAMistral AILate-stageText-to-Speech and Mistral Speech both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareBABland AIEarly-stageText-to-Speech and Bland Speech both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service and agent platform rather than the same layer.1 of 1 capabilityDifferent layerCompareHHeyGenEarly-stageText-to-Speech and HeyGen Video Translator both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships API service, application and 1 more rather than the same layer.1 of 1 capabilityDifferent layerCompareOOpenAILate-stageText-to-Speech and OpenAI API both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareMMagnificUndisclosedText-to-Speech and Magnific Creative Suite both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships application rather than the same layer.1 of 1 capabilityDifferent layerCompareHCHuawei CloudUndisclosedText-to-Speech and Speech Interaction Service both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either.1 of 1 capabilityShared product typeCompareFFovionicsUndisclosedText-to-Speech and Fovionics AI Companion Glasses both list text to speech; scale not recorded for either; ships hardware rather than the same layer.1 of 1 capabilityDifferent layerCompareOOraclePublicText-to-Speech and OCI Speech both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompareXxAIAcquiredText-to-Speech and Grok Voice both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; xAI is acquired, with no independent scale.1 of 1 capabilityShared product typeCompareFFlikiUndisclosedText-to-Speech and Fliki both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships application rather than the same layer.1 of 1 capabilityDifferent layerCompareTTwilioPublicText-to-Speech and Conversation Relay both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships API service, application and 3 more rather than the same layer.1 of 1 capabilityDifferent layerCompareYYandexPublicText-to-Speech and Yandex SpeechKit both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships API service, application and 2 more rather than the same layer.1 of 1 capabilityDifferent layerCompareSSynthesiaLate-stageText-to-Speech and Synthesia both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships AI agent and application rather than the same layer.1 of 1 capabilityDifferent layerComparePFPocket FMLate-stageText-to-Speech and Sherpa by Pocket FM both list text to speech; ships application rather than the same layer.1 of 1 capabilityDifferent layerSame scale bandComparePLPika LabsLate-stageText-to-Speech and Speech Studio both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships AI agent, API service and 1 more rather than the same layer.1 of 1 capabilityDifferent layerCompareVVEEDEarly-stageText-to-Speech and VEED both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships API service and application rather than the same layer.1 of 1 capabilityDifferent layerCompareTTrebloUndisclosedText-to-Speech and Treblo API both serve buyers who need to create synthetic voice and audio; scale not recorded for either.Shared product typeCompareSASkywork AIUndisclosedText-to-Speech and Mureka API Platform both list text to speech; both also serve buyers who need to create synthetic voice and audio; scale not recorded for either; ships AI agent, API service and 2 more rather than the same layer.1 of 1 capabilityDifferent layerCompareZZoomPublicText-to-Speech and Zoom Virtual Agent both list text to speech; both also serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded; ships AI agent, API service and 2 more rather than the same layer.1 of 1 capabilityDifferent layerCompareMMicrosoftPublicText-to-Speech and Azure AI Immersive Reader both list text to speech; Gradium's scale not recorded; ships AI agent, API service and 6 more rather than the same layer.1 of 1 capabilityDifferent layerCompareNNVIDIAPublicText-to-Speech and NVIDIA Broadcast both serve buyers who need to create synthetic voice and audio; Gradium's scale not recorded.1 of 1 capabilityShared product typeCompare

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

Stage, from total funding

Company disclosure · 20 Oct 2026

"Gradium has extended its funding to $100 million"

Valuation

Not found · 20 Oct 2026

Pages read for this record state no valuation or market capitalisation.

Founded

Company disclosure · 20 Oct 2026

"Gradium was founded in September 2025"

Public listing

Not found · 20 Oct 2026

No listing on the pages read; treated as private.

Description

Official documentation · 20 Oct 2026

Company page: "Gradium builds the technological backbone, models and infrastructure, to support all voice applications."

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