Alternatives
Most reliable OpenAI API alternatives (2026)
OpenAI API has a reliability score of 49.0/100 with 98.72% uptime over the last 90 days. Here is how every alternative we track compares, ranked by reliability.
LLM API Providers alternatives to OpenAI API
| Alternative | Score | Uptime |
|---|---|---|
| Perplexity API#1 LLM API provider | 93.8 | 99.94% |
| Cohere#2 LLM API provider | 91.6 | 99.94% |
| Groq#3 LLM API provider | 91.4 | 99.94% |
| Cerebras Inference#4 LLM API provider | 89.3 | 99.88% |
| xAI API#5 LLM API provider | 82.0 | 99.76% |
| DeepSeek API#6 LLM API provider | 76.0 | 100% |
| Mistral API#7 LLM API provider | 72.0 | 99.63% |
| OpenRouter#8 LLM API provider | 62.9 | 99.44% |
| Fireworks AI#10 LLM API provider | 43.7 | 98.00% |
| Anthropic API#11 LLM API provider | 36.8 | 97.52% |