Compare Gemini 2.5 Flash Preview 09-2025 from Google and Sonoma Sky Alpha from OpenRouter on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
Gemini 2.5 Flash Preview 09-2025 and Sonoma Sky Alpha are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Gemini 2.5 Flash Preview 09-2025, from Google, has a 1,048,576-token context window and is priced by the provider serving it on OpenRouter.
Sonoma Sky Alpha, from OpenRouter, has a 2,000,000-token context window and is priced by the provider serving it on OpenRouter.
| Attribute | Gemini 2.5 Flash Preview 09-2025 | Sonoma Sky Alpha |
|---|---|---|
| Input price | Pricing varies by provider | Pricing varies by provider |
| Output price | Pricing varies by provider | Pricing varies by provider |
| Context window | 1,048,576 tokens | 2,000,000 tokens |
| Intelligence Index | Not available | Not available |
| Coding Index | Not available | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | Not available | Not available |
| Throughput (p50) | Not available | Not available |
Sonoma Sky Alpha has the longer context window at 2,000,000 tokens, compared with 1,048,576 tokens for Gemini 2.5 Flash Preview 09-2025.