Compare DeepSeek V3.1 Base from DeepSeek and Gemini 2.5 Pro from Google on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.


DeepSeek V3.1 Base and Gemini 2.5 Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
DeepSeek V3.1 Base, from DeepSeek, has a 163,840-token context window and is priced by the provider serving it on OpenRouter.
Gemini 2.5 Pro, from Google, has a 1,048,576-token context window and is priced at $1.25/M tokens input, $10/M tokens output on OpenRouter.
| DeepSeek V3.1 Base | Gemini 2.5 Pro | |
|---|---|---|
| Input price | Pricing varies by provider | $1.25/M tokens |
| Output price | Pricing varies by provider | $10/M tokens |
| Context window | 163,840 tokens | 1,048,576 tokens |
| Intelligence Index | Not available | 14.5 |
| Coding Index | Not available | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | Not available | 4.79 s |
| Throughput (p50) | Not available | 69.0 tok/s |
Gemini 2.5 Pro has the longer context window at 1,048,576 tokens, compared with 163,840 tokens for DeepSeek V3.1 Base.