
Playground lets teams compare model responses, tune prompts and export requests as code.
Playground is a workspace tool for sending one prompt to multiple reachable models, reviewing responses side by side and adjusting parameters. Users can save shared presets and copy the tested request as cURL, Python or TypeScript.
The product supports developers evaluating model behavior before integrating a request into an application. It works with catalog models and deployments available to the workspace, while inference usage is billed through the service that processes each prompt.


Models.dev is an open-source directory and API for discovering and comparing AI models.


A unified OpenAI-compatible API and gateway for accessing hundreds of LLMs from many providers.



Stateful API sandboxes for testing AI agents without hitting live third party services.



StableBrowse Agent Experience Platform helps devtool, infrastructure, and SaaS companies make their products usable by AI agents.


Pre-optimized APIs for Kimi, DeepSeek, GLM on Baseten Inference Stack.




Poe is a fast AI chat platform providing access to multiple top language models.



Open source AI gateway routing every model behind one zero-markup OpenAI-compatible endpoint.




OpenHands' canvas for running, orchestrating, and automating multiple AI coding agents.


AgentGrid's desktop canvas for running, orchestrating, and monitoring multiple AI coding agents.


Semantic search engine for large TypeScript and Python codebases built for MCP coding agents.


Developer API for Anthropic's Claude family of frontier language models including Opus, Sonnet, and Haiku.


Developer workspace for spec-driven agent orchestration with living specs, isolated workspaces, and multi-agent coordination.
Models.dev is an open-source directory and API for discovering and comparing AI models.

A unified OpenAI-compatible API and gateway for accessing hundreds of LLMs from many providers.

Stable is a slash-command layer that brings any model into an existing coding agent.

Stateful API sandboxes for testing AI agents without hitting live third party services.

Evals is an agent-experience evaluation platform scoring how product flows work for AI agents.

StableBrowse Agent Experience Platform helps devtool, infrastructure, and SaaS companies make their products usable by AI agents.

Pre-optimized APIs for Kimi, DeepSeek, GLM on Baseten Inference Stack.

Open-source AI coding agent offering code generation, autocomplete, and terminal automation across IDEs.

Zen provides handpicked, benchmarked AI models optimized for coding agents in OpenCode.

Poe is a fast AI chat platform providing access to multiple top language models.

Multi-model AI chat offering access to frontier LLMs under one plan.

Open source AI gateway routing every model behind one zero-markup OpenAI-compatible endpoint.

OpenCode is the open-source AI coding agent for terminal, IDE, and desktop.

Adaptive OpenAI-compatible endpoint coordinating open-weight models for chat and agents.

OpenHands' canvas for running, orchestrating, and automating multiple AI coding agents.

AgentGrid's desktop canvas for running, orchestrating, and monitoring multiple AI coding agents.

Semantic search engine for large TypeScript and Python codebases built for MCP coding agents.

Developer API for Anthropic's Claude family of frontier language models including Opus, Sonnet, and Haiku.

Developer workspace for spec-driven agent orchestration with living specs, isolated workspaces, and multi-agent coordination.
