Best Google Gemini API alternatives.
Live source-backed alternatives to Google Gemini API for LLM APIs. Alternatives are selected from the same task category and update whenever the best-of index rebuilds.
Google Gemini API
Official Gemini API documentation for model API access, multimodal applications, structured output, tool use, and realtime Live API workflows. official_service llm api model api function calling structured output tool calling voice agent text audio vision multimodal api hosted long context structured output live audio
OpenAI API
Matched llm api, model api, function calling; 1 source link; official service signal; access model: Paid API
Anthropic Claude API
Matched llm api, model api, function calling; 2 source links; official service signal; access model: Paid API
| # | Alternative | Kind | Access | Fit | Why it appears | Source |
|---|---|---|---|---|---|---|
| 01 | OpenAI API | service | Paid API | Score100 | Matched llm api, model api, function calling; 1 source link; official service signal; access model: Paid API | developers.openai.com |
| 02 | Anthropic Claude API | service | Paid API | Score83 | Matched llm api, model api, function calling; 2 source links; official service signal; access model: Paid API | platform.claude.com |
| 03 | NVIDIA NIM Model Catalog | service | Free endpoint | Score78 | Matched llm api, model api, inference api; 3 source links; official inference catalog signal; access model: Free endpoint | build.nvidia.com |
| 04 | xAI API | service | Paid API | Score78 | Matched llm api, model api, inference api; 3 source links; official service signal; access model: Paid API | x.ai |
| 05 | Hugging Face Inference Providers | service | Paid API | Score75 | Matched llm api, model api, inference api; 2 source links; official inference catalog signal; access model: Paid API | huggingface.co |
| 06 | OpenRouter API | service | Paid API | Score74 | Matched llm api, model api, inference api; 2 source links; official service signal; access model: Paid API | openrouter.ai |
| 07 | Fireworks AI Serverless Models | service | Paid API | Score74 | Matched llm api, model api, inference api; 2 source links; official inference catalog signal; access model: Paid API | docs.fireworks.ai |
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