RL Environments Catalog

Pick an environment below. Each row opens a page with builder, domains, source, and related benchmarks.

80 of 105 tracked entries · snapshot 2026-09-21 · type to filter, click a header to sort

80 environments shown

Environment	Domains	Source
AfterQueryAfterQuery is a San Francisco applied-research lab and data platform (YC W25) that supplies frontier AI labs…	Coding Computer Use Enterprise Workflows	rl-list
MercorMercor is a venture-backed expert-marketplace and AI-training-data company that organizes a network of…	Coding Enterprise Workflows Long-Horizon	rl-list
Prime IntellectPrime Intellect operates an open-source RL stack - the Environments Hub (2,500+ community RL environments),…	Coding Enterprise Workflows Long-Horizon Math	rl-list
Surge AISurge AI is a bootstrapped, high-revenue human-data and RLHF labeling leader serving frontier AI labs, which…	Enterprise Workflows Long-Horizon	rl-list
MechanizeMechanize is a small, elite San Francisco vendor (founded April 2025 by ex-Epoch AI researchers Matthew…	Coding Private Codebases	rl-list
ProximalProximal is a San Francisco-based (with a Bangalore presence) research lab for coding data, building…	Coding Long-Horizon Private Codebases	rl-list
DeeptuneDeeptune was a New York-based startup building managed reinforcement-learning environments ('training gyms')…	Coding Computer Use Enterprise Workflows Private Codebases	rl-list
Sepal AISepal AI was a YC-backed (S24) San Francisco data-research company that built high-quality training data,…	Enterprise Workflows Long-Horizon Math	rl-list
TuringTuring is a large AGI-infrastructure and engineering-services company that supplies frontier AI labs with…	Coding Enterprise Workflows Private Codebases	rl-list
Fleet AIFleet AI builds high-fidelity reinforcement-learning training environments ('gyms') that replicate enterprise…	Computer Use Enterprise Workflows	rl-list
Gray Swan AIGray Swan AI is a Pittsburgh-based AI security company spun out of Carnegie Mellon, offering adversarial…		rl-list
RefreshRefresh (YC X25) builds simulation engines / RL environments with verifiable rewards for coding and computer…	Coding Computer Use Private Codebases	rl-list
Scale AIScale AI is the data-labeling and AI-data incumbent that has extended into RL environments, offering simulated…	Coding Computer Use Enterprise Workflows Long-Horizon	rl-list
ModalModal (Modal Labs) is a New York-based, Python-native serverless cloud purpose-built for AI/ML workloads,…	Coding	rl-list
ScaleStanford, Coinbase, YC	Multi-Domain Coding	pavlovslist
SurgeGoogle, Meta, Twitter	Multi-Domain	pavlovslist
micro1Stanford, Berkeley	Multi-Domain	pavlovslist
NormalCohere, Notion, Fuse	Chip Design	pavlovslist
FleetMercor, Anthropic, MSL	Multi-Domain Enterprise Workflows	pavlovslist
Bespoke LabsBespoke Labs is an applied AI research lab (Mountain View, CA, founded 2024) focused on data curation and…	Long-Horizon	rl-list
Vals AIVals AI is an independent, third-party benchmarking and evaluation platform that scores LLMs and AI…		rl-list
MorphMorph (Morph Labs) provides snapshot-based VM compute for AI agents via its Infinibranch / Liquid Metal…	Coding	rl-list
Andon LabsAndon Labs is a Y Combinator-backed (W24) startup, formerly Vectorview, building benchmarks and evaluations…	Computer Use Long-Horizon	rl-list
HalluminateHalluminate (YC S25, founded 2024, San Francisco) builds managed reinforcement-learning sandbox environments,…	Computer Use Enterprise Workflows	rl-list
BenchFlowBenchFlow is an early-stage, YC-backed open-source 'environment lab' building evaluation infrastructure and a…	Coding Computer Use Enterprise Workflows	rl-list
General ReasoningGeneral Reasoning is an AI research lab (operating research hub in London; legal entity General Reasoning,…	Coding Long-Horizon	rl-list
Good Start LabsGood Start Labs is a 2025 Every spin-out that builds game-based environments to generate…	Long-Horizon	rl-list
Chakra LabsChakra Labs runs Dojo, an open/collaborative reinforcement-learning environment hub for computer-use agents,…	Computer Use	rl-list
VmaxVmax is a San Francisco reinforcement-learning startup (founded 2025 by three RL/robotics PhDs from UCL and…	Coding Long-Horizon	rl-list
DatacurveDatacurve is a YC W24 commercial data vendor that supplies expert-curated frontier coding data, RLHF traces,…	Coding Private Codebases	rl-list
HUDHUD (YC W25, formerly hud.so) is a platform for building reinforcement-learning environments and evaluations…	Computer Use Enterprise Workflows	rl-list
CuaCua (trycua, YC X25) is open-source MIT-licensed infrastructure for computer-use agents, providing cloud and…	Computer Use	rl-list
Huzzle LabsHuzzle Labs is the AI division of London-based talent platform Huzzle (founded ~2020 by Ingmar Klein, Parham…	Coding Computer Use Enterprise Workflows Long-Horizon Private Codebases	rl-list
CollinearCollinear AI operates a 'Simulation Lab' (SimLab) that builds sandboxed, stateful RL environments simulating…	Coding Computer Use Enterprise Workflows Long-Horizon	rl-list
Veris AIVeris AI sells a high-fidelity simulation platform plus a production runtime that let enterprises train,…	Enterprise Workflows	rl-list
AndromedeAndromede is an early-stage RL data lab that programmatically generates RL environments, tasks, and verifiers…	Long-Horizon	rl-list
PlatoPlato (plato.so, Plato Technologies, Inc.) builds simulated worlds for training and evaluating browser and…	Computer Use Enterprise Workflows	rl-list
RunloopRunloop sells cloud-hosted, isolated micro-VM 'devboxes' plus blueprints, snapshots and benchmark/eval tooling…	Coding	rl-list
MatricesMatrices builds reinforcement-learning training environments for frontier AI labs to train agents that use…	Computer Use	rl-list
AIChampAIChamp builds custom reinforcement-learning environments and 'Virtual Gym' simulations for training and…	Enterprise Workflows Long-Horizon	rl-list
Habitat IncHabitat Inc is an early-stage commercial vendor (2-10 employees, New York HQ) building reinforcement-learning…	Coding Computer Use Enterprise Workflows	rl-list
DaytonaDaytona provides secure, elastic, programmatic sandboxes ('computers') that AI agents and developers can spin…	Coding Computer Use	rl-list
E2BE2B provides open-source, secure cloud sandboxes (built on Firecracker microVMs) for running AI-generated code…	Coding Computer Use	rl-list
HandshakePalantir, Meta, Scale AI	Multi-Domain	pavlovslist
SnorkelStanford, UW, Meta	Multi-Domain Coding	pavlovslist
LatchBerkeley, Google, Asimov	Science	pavlovslist
Patronus AIMeta AI, Google, Amazon	Multi-Domain Coding	pavlovslist
ParetoStanford, Scale, Turing	Multi-Domain Tool Use	pavlovslist
ApturaLazard, McKinsey, EF	Finance Enterprise Workflows	pavlovslist
QuesmaElastic, Sumo Logic, Dynatrace	Security	pavlovslist
ReasonCoreTuring, Aera Technology, Oracle	Science Coding	pavlovslist
AbundantWaymo, Google, Mercor	Coding	pavlovslist
AviroYC, Princeton, Georgia Tech	Coding ML	pavlovslist
EdotEnvG-Research, Etched, ETH Zurich	Long-Horizon ML	pavlovslist
EmulatedAWS, DeepMind, Prime Intellect	Coding ML	pavlovslist
MarkovYC, IIT Madras	Computer Use Tool Use	pavlovslist
MetaphiWaymo, Nuro, Netflix	Coding Enterprise Workflows	pavlovslist
pre.devPenn M&T, Wharton	Coding Long-Horizon	pavlovslist
Tacit LabsMosaicML, MSR, EF	Science Long-Horizon	pavlovslist
UlamOxford	Math	pavlovslist
OriginatorGoogle, Dataform, Pareto Holdings	Computer Use Coding	pavlovslist
ParsewaveMeta, Red Hat	Long-Horizon	pavlovslist
WirestockUtah State, MIT	Creative	pavlovslist
Taste LabsExa, Palantir, Mercado Libre	Creative	pavlovslist
Verita AIHRT, Jane Street, Mercor	Creative	pavlovslist
ARIMLABSAkamai	Security Long-Horizon	pavlovslist
dmodelOpenAI, Google Brain, EleutherAI	ML Alignment	pavlovslist
IdlerMeta, Microsoft, Cornell	Coding	pavlovslist
IncalmoCMU, MSR, RSAC Labs	Security	pavlovslist
Preference ModelAnthropic, Stripe, Datology	ML Coding	pavlovslist
SymbalMeta AI, General Catalyst, Deeptune	Coding Enterprise Workflows	pavlovslist
AkharaMeta, MIT, Cornell	Enterprise Workflows Coding	pavlovslist
AnthromindGoogle, Forward Health	Healthcare Long-Horizon	pavlovslist
Diffuse Labsa16z, CMU	ML Long-Horizon	pavlovslist
DisseiWarwick, Goldman Sachs, HBS	Finance	pavlovslist
ExabiteStanford, MIT, Magic	Coding	pavlovslist
HillclimbDeepMind, Base	Math	pavlovslist
Ooak DataSamsung, GoPuff, YC	Enterprise Workflows	pavlovslist
PhinityNVIDIA, AWS, Stanford	Chip Design	pavlovslist
Rise Data LabsWharton	Enterprise Workflows	pavlovslist

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RL Environments Catalog