ChatGPT
OpenAI · Tools & API Platforms
OpenAI's conversational product — the free tier is enough to try mainstream model capabilities, and it is most people's first stop with AI.
Chat products, model API gateways and free-tier platforms · 10 resources (10 checked)
OpenAI · Tools & API Platforms
OpenAI's conversational product — the free tier is enough to try mainstream model capabilities, and it is most people's first stop with AI.
Anthropic · Tools & API Platforms
Anthropic's conversational product, well regarded for long context and coding; the free tier works for daily use.
Perplexity · Tools & API Platforms
An AI-native search engine whose answers cite sources — handy for quickly verifying questions that come up while studying.
Groq · Tools & API Platforms
Groq's inference cloud runs open models at extreme speed, with free credits on signup.
Google · Tools & API Platforms
Google's model playground: call Gemini models and debug prompts right in the browser, with a friendly free tier.
OpenRouter · Tools & API Platforms
A unified LLM API gateway — one key for hundreds of models, some of them free.
Together · Tools & API Platforms
A cloud platform for serving open models, with serverless and dedicated endpoints plus trial credits on signup.
Cloudflare · Tools & API Platforms
Docs for running models on Cloudflare's edge, deeply integrated with the Workers ecosystem, with a free tier.
BerriAI · Tools & API Platforms
A proxy SDK that calls 100+ LLMs in the OpenAI format, with built-in retries, budgets, and logging.
Jason Liu · Tools & API Platforms
A Pydantic-based structured output library with solid retry and validation — a great companion for function calling.