OpenRouter
Model Gateways
Gateway + API
A model gateway for trying many LLMs through one API, including selected free model options and a free-model router for experimentation.
- Free shape
- Selected free models
- Setup
- Some setup
- You will need
- Account and API key
Good for: Learning, small experiments, model comparison, and early prototypes.
Sources reviewed 11 Jul 2026
Vercel AI Gateway
Model Gateways
Gateway + API
A unified API for reaching models from multiple providers, with routing, fallbacks, usage controls, and a small monthly credit shown on Vercel's official pricing page when checked.
- Free shape
- Monthly gateway credit
- Setup
- Some setup
- You will need
- Vercel team account and API key
Good for: Testing multi-provider routing, adding fallbacks, and keeping model choices easier to change in Vercel or AI SDK projects.
Sources reviewed 11 Jul 2026
Hugging Face Inference Providers
Inference Platforms
Hosted inference API
A Hugging Face routing layer for calling supported models across several inference providers with one Hugging Face token and common client libraries.
- Free shape
- Monthly inference credits
- Setup
- Some setup
- You will need
- Hugging Face account and token
Good for: Trying hosted models across providers, comparing routes, and adding text, image, audio, or embedding tasks without managing inference servers.
Sources reviewed 11 Jul 2026
Google AI Studio / Gemini API
Model Provider APIs
Playground + API
Google's browser workspace and developer API for trying Gemini models, creating API keys, testing prompts, and moving selected experiments into code.
- Free shape
- Model-dependent free tier
- Setup
- Some setup
- You will need
- Google account, project, and API key for code
Good for: Trying Gemini in a browser, learning the Gemini API, prototyping prompts, and testing Google model features before deciding on a paid path.
Sources reviewed 11 Jul 2026
GroqCloud
Inference Platforms
API
A fast AI inference platform for developers, with API access to supported text, audio, and vision models.
- Free shape
- Free developer plan
- Setup
- Some setup
- You will need
- Account and API key
Good for: Fast API experiments, latency-sensitive prototypes, testing supported open models, and small developer projects.
Sources reviewed 21 Jul 2026
Cloudflare Workers AI
Inference Platforms
Cloud API
A serverless AI inference platform for running supported machine-learning models on Cloudflare's global network.
- Free shape
- Daily free allocation
- Setup
- Technical
- You will need
- Cloudflare account
Good for: Serverless AI experiments, edge-adjacent prototypes, lightweight inference workflows, embeddings, and developers already using Cloudflare Workers.
Sources reviewed 13 Jul 2026
Cohere
Model Provider APIs
API
A direct model-provider API for trying Cohere models and endpoints, including chat, embeddings, rerank, retrieval-oriented workflows, and related developer tools.
- Free shape
- Trial API key
- Setup
- Some setup
- You will need
- Account and API key
Good for: Testing Cohere's chat, embedding, rerank, retrieval, and proof-of-concept API workflows.
Sources reviewed 13 Jul 2026
Mistral AI / Studio
Model Provider APIs
Playground + API
A direct model-provider API and developer console for trying Mistral models through Studio, including API keys, playground workflows, agents, evaluations, and SDK-based development.
- Free shape
- Limited free mode
- Setup
- Some setup
- You will need
- Account; no card in cited setup docs
Good for: Testing Mistral models, building small API prototypes, trying the Studio playground, experimenting with agents, and evaluating Mistral's chat and developer workflows.
Sources reviewed 13 Jul 2026
ChatGPT Free
AI assistants
Web + apps
Chat with AI, search the web, work with files, and try selected tools from a browser or app.
- Free shape
- Free tier
- Setup
- Easy
- You will need
- Account for the full experience
Good for: A familiar first AI chat, everyday questions, files, and images.
Sources reviewed 13 Jul 2026
Claude Free
AI assistants
Web + apps
A general AI assistant for writing, analysis, coding, and working with text or images.
- Free shape
- Free plan
- Setup
- Easy
- You will need
- Account
Good for: Writing, careful explanations, documents, and general problem-solving.
Sources reviewed 13 Jul 2026
Microsoft Copilot Free
AI assistants
Web + apps
A general AI assistant available in the browser, Microsoft apps, mobile apps, and Edge.
- Free shape
- Free access
- Setup
- Easy
- You will need
- No sign-in for basic use
Good for: Quick questions and people already using Microsoft or Edge.
Sources reviewed 13 Jul 2026
Perplexity Standard
AI search
Web + apps
An answer engine that searches the web and shows linked sources alongside its response.
- Free shape
- Free plan
- Setup
- Easy
- You will need
- Account for history and saved use
Good for: Research starting points, current topics, and following sources.
Sources reviewed 13 Jul 2026
GitHub Copilot Free
Coding assistants
Editor + GitHub
Coding assistance in supported editors and GitHub, with a limited free plan for individual developers.
- Free shape
- Limited free plan
- Setup
- Some setup
- You will need
- Eligible individual GitHub account
Good for: Trying code completion and chat inside a coding workflow.
Sources reviewed 13 Jul 2026
Run supported open models on your own computer through desktop apps, a command line, or a local API.
- Free shape
- Free local use
- Setup
- Some setup
- You will need
- Installation and suitable hardware
Good for: Local experiments, private files that should stay on-device, and learning how models run.
Sources reviewed 13 Jul 2026
Use a desktop chat workspace that runs its default model and other compatible models on your computer, with optional connections to cloud providers.
- Free shape
- Free local use
- Setup
- Some setup
- You will need
- Supported computer, model download, and enough memory and storage
Good for: People who want a familiar chat interface for local AI without starting from a command line or API.
Sources reviewed 27 Jul 2026
Mistral Vibe Free
AI assistants
Web + apps
Mistral's AI assistant, formerly Le Chat, for quick answers, web search, and simple tasks on the Free plan.
- Free shape
- Free plan
- Setup
- Easy
- You will need
- Account
Good for: Trying Mistral's assistant and keeping a separate option from the larger chatbot providers.
Sources reviewed 13 Jul 2026
No matching option yet. Clear a filter or try a broader word.