Powerful open-weight reasoning models with a free chat app
- Chatbots
- Open-weight Models
- Assistants & Chatbots
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AI Models & Developer Platforms
Foundation model APIs, open-source models, ML platforms and inference hosting for building AI apps.
Popular:
58 AI Models & Developer Platforms
Find the perfect tool for your needs.
Open-source image generation models you can run anywhere
- Image Generation
- Open-weight Models
- Developer Platforms & Models
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State-of-the-art image models from Black Forest Labs
- Image Generation
- Open-weight Models
- Developer Platforms & Models
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Community hub for open image models, LoRAs and generation
- Art
- Open-weight Models
- Developer Platforms & Models
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Open-source speech recognition with high accuracy
- Open-weight Models
- Speech to Text
- Developer Platforms & Models
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Search engine API built for AI applications
- Search Engines
- LLM APIs
- Developer Platforms & Models
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Web search API optimised for LLMs and agents
- Search Engines
- LLM APIs
- Developer Platforms & Models
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Framework and platform for building LLM apps and agents
- Agent Frameworks
- ML Platforms
- Automation
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Access GPT, reasoning, image and audio models via API
- LLM APIs
- Developer Platforms & Models
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Build with Claude models through the Anthropic API
- LLM APIs
- Developer Platforms & Models
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Prototype and build with Gemini models for free
- LLM APIs
- Developer Platforms & Models
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Home of open-source AI models, datasets and Spaces
- ML Platforms
- Open-weight Models
- Developer Platforms & Models
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How to Choose the Best AI Models & Developer Platforms
Developer platforms give you access to AI models through APIs or downloadable weights. You send prompts or data, the model returns completions, embeddings, images or audio, and you build that capability into your own products. ML platforms add tools to fine-tune, evaluate and deploy models at scale.
What to look for
- Compare model quality, speed and price per token.
- Check context window and rate limits.
- Consider open-weight models for control and privacy.
- Look for fine-tuning and evaluation tools.
- Review data usage and retention policies.
- Plan for fallbacks across providers.
Frequently Asked Questions
What is the best LLM API?
OpenAI, Anthropic Claude and Google Gemini APIs lead on capability; Mistral, Meta Llama, DeepSeek and Qwen offer strong open-weight options.
What is an open-weight model?
A model whose weights you can download and run on your own hardware, such as Llama, Mistral or Qwen.
Where can I host open-source models?
Hugging Face, Together AI, Groq, Fireworks AI and Replicate host open models behind simple APIs.