OpenAI API Platform
OpenAI's developer platform for building apps with GPT, image, audio and embedding models.
Model APIs, playgrounds and hosting to build your own AI apps, or run models locally.
22 tools, ranked by our editors. Pricing is what each tool's own site shows.
OpenAI's developer platform for building apps with GPT, image, audio and embedding models.
Best for: Developers building AI features into apps and services.
Anthropic's console and API for building with the Claude family of models.
Best for: Developers who want strong reasoning and writing models in their apps.
Google's browser workspace for trying Gemini models and getting a Gemini API key.
Best for: Developers and tinkerers who want a fast, low-cost start with Gemini.
Run open language models locally on your own computer with one simple command.
Best for: Developers and privacy-minded users who want models running locally.
A family of high-quality image models for generating and editing pictures from text.
Best for: Developers and creators who want top-tier image quality and control.
One API and key to reach hundreds of AI models from many different providers.
Best for: Developers who want to switch or compare models without many integrations.
Desktop app for discovering, downloading and chatting with local language models.
Best for: Anyone who wants a friendly app for running AI models locally.
Run thousands of open-source AI models in the cloud with a simple API.
Best for: Developers adding image, video or audio models to apps.
Very fast cloud inference for open models, powered by Groq's own chips.
Best for: Developers building real-time apps that need fast responses.
Mistral AI's developer platform for its open and commercial language models.
Best for: Developers who want capable European models, some with open weights.
Filter by price or search within this category.
22 AI tools
OpenAI's developer platform for building apps with GPT, image, audio and embedding models.
Anthropic's console and API for building with the Claude family of models.
Google's browser workspace for trying Gemini models and getting a Gemini API key.
Run open language models locally on your own computer with one simple command.
A family of high-quality image models for generating and editing pictures from text.
One API and key to reach hundreds of AI models from many different providers.
Desktop app for discovering, downloading and chatting with local language models.
Run thousands of open-source AI models in the cloud with a simple API.
Very fast cloud inference for open models, powered by Groq's own chips.
Mistral AI's developer platform for its open and commercial language models.
Microsoft's platform for building AI apps and agents with a large catalogue of models.
Cloud platform to run, fine-tune and train open-source AI models.
Enterprise AI models for chat, search, embeddings and reranking.
Fast API platform for image, video and audio generation models.
Speech AI APIs that transcribe audio and pull insights from conversations.
Speech-to-text and voice AI APIs for transcription and voice agents.
Open-source platform for building AI apps, chatbots and agent workflows visually.
Search engine and API built for AI apps, returning clean web results and page content.
Fast inference and fine-tuning platform for open and custom AI models.
A self-hosted, open-source chat interface for local and cloud AI models.
An open-source desktop app for running AI chat models fully offline on your computer.
Ultra-fast, realistic text-to-speech API built for real-time voice agents.
Head-to-heads, alternatives and free picks in this category.
Our top pick is OpenAI API Platform: OpenAI's developer platform for building apps with GPT, image, audio and embedding models. Claude Developer Platform and Google AI Studio are close behind.
Yes. Google AI Studio, Ollama, FLUX by Black Forest Labs, OpenRouter, LM Studio can all be used without paying, on a free plan or as open source. Free limits change often, so check each tool's site.
Our editors score each tool on how well it does the job, how mature and reliable it is and how much the free plan gives you. No listing is paid for.