Claude Sonnet 4.6 vs Gemini 2.5 Flash
Gemini 2.5 Flash leads in 3 of 8 categories
Arena ELO
Claude Sonnet 4.6
Cheaper
Gemini 2.5 Flash
Faster
Gemini 2.5 Flash
Detailed Comparison
| Category | Claude Sonnet 4.6 | Gemini 2.5 Flash |
|---|---|---|
| Provider | Anthropic | |
| Context Window | 1M | 1M |
| Input Price ($/1M) | $3 | $0.3 WIN |
| Output Price ($/1M) | $15 | $2.5 WIN |
| Arena ELO | 1440 WIN | 1362 |
| Coding | 79.6% SWE-bench | unknown |
| Reasoning | 72.5% OSWorld | unknown |
| Speed (tokens/sec) | ~80 t/s | ~150 t/s WIN |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Claude Sonnet 4.6 or Gemini 2.5 Flash?
Gemini 2.5 Flash is approximately 84% cheaper than Claude Sonnet 4.6 per million tokens.
Which is better for coding, Claude Sonnet 4.6 or Gemini 2.5 Flash?
Claude Sonnet 4.6 scores 79.6% SWE-bench on coding benchmarks, while Gemini 2.5 Flash scores unknown.
Which has a larger context window?
Claude Sonnet 4.6 supports 1M context, while Gemini 2.5 Flash supports 1M.
Is Claude Sonnet 4.6 or Gemini 2.5 Flash open source?
Claude Sonnet 4.6 is proprietary. Gemini 2.5 Flash is proprietary.
Which ranks higher on the Chatbot Arena leaderboard?
Claude Sonnet 4.6 ranks higher with ELO 1440 vs 1362.
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