E

EleutherAI

Foundation Models

Non-profit AI research lab that trains and releases open models, datasets and tools, including the GPT-NeoX training framework and the Pythia model suite.

Total funding—

Valuation—

Employees15

Founded2020

HeadquartersNew York, USA

StatusNonprofit

Products

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

• GPT-NeoX Developer tool Sold on its own

  Library for training large autoregressive language models on GPU clusters.

• lm-evaluation-harness Developer tool Sold on its own

  Framework for evaluating language models on a common set of benchmark tasks.

Similar products 59

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 ↗

AAlphabet (Google)Public · $4.2TGPT-NeoX and Vertex AI Workbench do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.2 of 2 capabilitiesShared product typeCompareTMThinking Machines LabPrivate · $12BGPT-NeoX and Tinker do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships API service rather than the same layer.1 of 2 capabilitiesDifferent layerCompareALAI21 LabsPrivate · $1.4BGPT-NeoX and AI21 Post-Training do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships API service, agent platform and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareCMComet MLPrivate · $70M raisedGPT-NeoX and Comet Artifacts do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.2 of 2 capabilitiesShared product typeCompareMModalPrivate · $466M raisedGPT-NeoX and Modal Notebooks do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareTATogether AIPrivate · $8.3BGPT-NeoX and Together Custom Training do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareMAMistral AIPrivate · $13.8BGPT-NeoX and Mistral Forge do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships AI agent, API service and 3 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareBBaiduPublic · $31.6BGPT-NeoX and PaddlePaddle do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareLALiquid AIPrivateGPT-NeoX and LEAP do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Liquid AI's scale not recorded; ships application and platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareUUnslothPrivateGPT-NeoX and Unsloth do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Unsloth's scale not recorded.1 of 2 capabilitiesShared product typeCompareNGNebius GroupPublic · $61.6BGPT-NeoX and Managed Service for MLflow do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.2 of 2 capabilitiesShared product typeCompareCCrusoePrivate · $10BGPT-NeoX and Serverless Fine-Tuning do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.2 of 2 capabilitiesShared product typeCompareAAlibabaPublic · $273.4BGPT-NeoX and Alibaba Cloud Model Studio do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships AI agent, API service and 4 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareTTolokaPrivateGPT-NeoX and Toloka Train do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Toloka's scale not recorded; ships AI agent, data service and 1 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareTTuringPrivate · $2.2BGPT-NeoX and RL environments do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships agent platform and data service rather than the same layer.2 of 2 capabilitiesDifferent layerCompareW&Weights & BiasesAcquiredGPT-NeoX and W&B Models do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Weights & Biases is acquired, with no independent scale.2 of 2 capabilitiesShared product typeCompareKKuaishouPublic · $18.6BGPT-NeoX and Vanchin do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareBFBlack Forest LabsPrivate · $3.3BGPT-NeoX and Open Weights Licensing do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships application, infrastructure service and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareDDatabricksPrivate · $190BGPT-NeoX and Databricks Model Training do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.2 of 2 capabilitiesShared product typeCompareTTencentPublic · $510.1BGPT-NeoX and Tencent Cloud TI Platform do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareCCCactus ComputePrivateGPT-NeoX and Cactus Platform do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Cactus Compute's scale not recorded; ships infrastructure service and platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareSSenseTimePublic · $7.7BGPT-NeoX and SenseCore do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships application, hardware and 4 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareBBasetenPrivate · $13BGPT-NeoX and Baseten Training do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships API service, infrastructure service and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareFAFireworks AIPrivate · $17.5BGPT-NeoX and Fireworks Training do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships API service and model API rather than the same layer.1 of 2 capabilitiesDifferent layerCompareHHumainPrivateGPT-NeoX and HUMAIN COMPUTE do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Humain's scale not recorded; ships API service, agent platform and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareCSCerebras SystemsPublic · $44.4BGPT-NeoX and Cerebras Training Cloud do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships hardware, model API and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareHHuaweiPrivateGPT-NeoX and MindSpore do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Huawei's scale not recorded.2 of 2 capabilitiesShared product typeCompareDDeepchecksAbsorbedlm-evaluation-harness and Deepchecks ML Testing both serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Deepchecks is absorbed, with no independent scale.1 of 2 capabilitiesShared product typeCompare44ParadigmPublic · $2BGPT-NeoX and 4Paradigm Sage HyperCycle do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships application, hardware and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareLLabelboxPrivate · $189M raisedGPT-NeoX and Terra do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.2 of 2 capabilitiesShared product typeCompareDDecartPrivate · $4BGPT-NeoX and Decart Optimization Stack do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships API service, application and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareSASnorkel AIPrivate · $1.3BGPT-NeoX and Snorkel Flow do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships agent platform, data service and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareIIBMPublic · $216.6BGPT-NeoX and IBM SPSS Modeler do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.2 of 2 capabilitiesShared product typeCompareNNVIDIAPublic · $5.1TGPT-NeoX and NVIDIA AI Workbench do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships hardware, infrastructure service and 2 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareOOraclePublic · $454.4BGPT-NeoX and OCI Data Science do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareNNeo4jPrivate · $2BGPT-NeoX and Neo4j Graph Data Science do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships agent platform, application and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareAAppenPublicGPT-NeoX and AI Data Platform do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Appen's scale not recorded; ships data service and platform rather than the same layer.1 of 2 capabilitiesDifferent layerCompareCCoreWeavePublic · $48.5BGPT-NeoX and CoreWeave AI Cloud do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships AI agent, infrastructure service and 1 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareIMInsilico MedicinePublic · $4.3BGPT-NeoX and MMAI Gym do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships application, hardware and 1 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareNCNAVER CloudPrivateGPT-NeoX and NCLUE do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; NAVER Cloud's scale not recorded; ships API service, application and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareKEKakao EnterprisePrivateGPT-NeoX and Kubeflow do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Kakao Enterprise's scale not recorded.2 of 2 capabilitiesShared product typeCompareLLambdaPrivate · $1.5B raisedGPT-NeoX and Lambda 1-Click Clusters do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships infrastructure service and model API rather than the same layer.1 of 2 capabilitiesDifferent layerCompareMMicrosoftPublic · $3.7TGPT-NeoX and Azure Machine Learning do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.2 of 2 capabilitiesShared product typeCompareAMApplied MaterialsPublic · $380.7BGPT-NeoX and SmartFactory AI Predictive Metrology do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships application, hardware and 1 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareSSiemensPublic · $244.7BGPT-NeoX and Rapidminer AI Studio do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships AI agent, application and 1 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareSSplunkAcquiredOverlaps on evaluation and observability and model training; EleutherAI is a nonprofit, with no independent scale; Splunk is acquired, with no independent scale.2 of 2 capabilitiesShared product typeCompareHFHugging FacePrivate · $4.5BGPT-NeoX and Hugging Face Jobs do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships API service, application and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareHCHuawei CloudPrivateGPT-NeoX and Huawei HiLens do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Huawei Cloud's scale not recorded.1 of 2 capabilitiesShared product typeCompareIIntelPublic · $463.7BGPT-NeoX and Intel Geti do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareRRunPodPrivateGPT-NeoX and Pods do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; RunPod's scale not recorded.1 of 2 capabilitiesShared product typeCompareYYandexPublicGPT-NeoX and Yandex DataSphere do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; Yandex's scale not recorded.1 of 2 capabilitiesShared product typeCompareAAdobePublic · $115.9BGPT-NeoX and Adobe Firefly Custom Models do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships AI agent, API service and 2 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareAAMDPublic · $785.1BGPT-NeoX and AMD ROCm do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships hardware, infrastructure service and 1 more rather than the same layer.1 of 2 capabilitiesDifferent layerCompareDDataikuPrivate · $3.7BGPT-NeoX and Dataiku do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale; ships AI agent, agent platform and 2 more rather than the same layer.2 of 2 capabilitiesDifferent layerCompareUUiPathPublic · $7.2BGPT-NeoX and UiPath AI Center do comparable work on model training; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareDTDell TechnologiesPublic · $360.7BGPT-NeoX and Dell AI Factory with NVIDIA do comparable work on model training; both also serve buyers who need to train or fine-tune a model; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareAAmazonPublic · $2.8TGPT-NeoX and AWS Trainium do comparable work on model training; EleutherAI is a nonprofit, with no independent scale.2 of 2 capabilitiesShared product typeCompareRRunwayPrivate · $5.3BGPT-NeoX and Runway Video Model Licensing do comparable work on model training; EleutherAI is a nonprofit, with no independent scale.1 of 2 capabilitiesShared product typeCompareSSpace42Public · $2.6BGPT-NeoX and GIQ do comparable work on model training; EleutherAI is a nonprofit, with no independent scale; ships platform rather than the same layer.1 of 2 capabilitiesDifferent 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

Checked — none published

EleutherAI incorporated as a 501(c)(3) nonprofit in 2023, funded by grants and donations (Stability AI, Hugging Face, Lambda Labs, Canva, Mozilla Foundation, Open Philanthropy, Omidyar Network and others named at incorporation) rather than equity rounds. Its Form 990 (via ProPublica's Nonprofit Explorer) shows 2024 revenue of $2.81M and total assets of $845K -- real, filed figures, but "revenue" on a 990 is not the same basis as funding raised in a capital round, so it is not recorded here rather than mixed with startup funding rounds.

Valuation

Checked — none published

No valuation to record -- EleutherAI is a nonprofit research collective, not equity-owned.

Employees

Company disclosure · 24 Sep 2026

About page: "EleutherAI is a non-profit research institute with 15 full- and part-time staff" (plus regular volunteers, not counted here). Supersedes the four-sweep not-found note of 2026-08-27.

Founded

Wikipedia · 27 Aug 2026

Wikipedia infobox "founded" field, read 2026-08-27.

Status

Company disclosure · 27 Sep 2026

About page: "EleutherAI is a non-profit AI research lab." Incorporated as a 501(c)(3) nonprofit in 2023 (see provenance.funding_total).

Description

Official documentation · 24 Sep 2026

"EleutherAI is a non-profit AI research lab. We train and release open models, datasets, and tools." The old wording's 'pioneering' was an unsourced superlative and left the nonprofit status unsaid.

Open EleutherAI in the directory

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