Analysis
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OpenAI
GPT-4o is a state-of-the-art language model developed by OpenAI, designed to understand and produce natural language. It excels in tasks such as content creation, conversation simulation, and text analysis.
Users can access GPT-4o by signing up for an OpenAI account and selecting a suitable subscription plan. API access is also available for developers.
Verified free entry points — terms change.
Dozens of models listed at $0 for both input and output tokens — rate-limited but genuinely free. Any OpenRouter-compatible client works.
Verified 2026-09 · terms may change
Free-of-charge tier for the Gemini API with generous per-minute quotas — a card is required for billing identity, but the free quota isn't billed.
Verified 2026-09 · terms may change
Free tier on GroqCloud for Llama, Mixtral and other open models at very high tokens/second — great for prototyping agents and chat apps.
Verified 2026-09 · terms may change
Experiment plan lets you try Mistral models via API for free within a small usage envelope before committing to a paid plan.
Verified 2026-09 · terms may change
Free API access to GPT, Llama, Mistral and more for GitHub users within daily rate limits, straight from your GitHub account.
Verified 2026-09 · terms may change
Free tier for extremely fast inference of open models — useful when latency, not cost, is your bottleneck.
Verified 2026-09 · terms may change
Official: platform.openai.com
