Best xAI API alternatives.
Live source-backed alternatives to xAI API for LLM APIs. Alternatives are selected from the same task category and update whenever the best-of index rebuilds.
xAI API
Official xAI API access for Grok models, usage-based pricing, rate limits, image, video, voice, and developer model workflows. official_service llm api model api inference api grok voice api image generation text audio image video api hosted usage-based pricing rate limits grok models
OpenAI API
Matched llm api, model api, function calling; 1 source link; official service signal; access model: Paid API
Google Gemini 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 | Google Gemini API | service | Paid API | Score94 | Matched llm api, model api, function calling; 2 source links; official service signal; access model: Paid API | ai.google.dev |
| 03 | 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 |
| 04 | 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 |
| 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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