Claude Opus 4.5 vs Gemini 2.5 Pro
Gemini 2.5 Pro leads in 4 of 8 categories
Arena ELO
Claude Opus 4.5
Cheaper
Gemini 2.5 Pro
Faster
Gemini 2.5 Pro
Detailed Comparison
| Category | Claude Opus 4.5 | Gemini 2.5 Pro |
|---|---|---|
| Provider | Anthropic | |
| Context Window | 200K | 1M WIN |
| Input Price ($/1M) | $5 | $1.25 WIN |
| Output Price ($/1M) | $25 | $10 WIN |
| Arena ELO | 1380 WIN | 1360 |
| Coding | 80.9% SWE-bench | 75.6% LiveCodeBench |
| Reasoning | unknown | 84.6% GPQA Diamond |
| Speed (tokens/sec) | ~35 t/s | ~60 t/s WIN |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Claude Opus 4.5 or Gemini 2.5 Pro?
Gemini 2.5 Pro is approximately 63% cheaper than Claude Opus 4.5 per million tokens.
Which is better for coding, Claude Opus 4.5 or Gemini 2.5 Pro?
Claude Opus 4.5 scores 80.9% SWE-bench on coding benchmarks, while Gemini 2.5 Pro scores 75.6% LiveCodeBench.
Which has a larger context window?
Claude Opus 4.5 supports 200K context, while Gemini 2.5 Pro supports 1M.
Is Claude Opus 4.5 or Gemini 2.5 Pro open source?
Claude Opus 4.5 is proprietary. Gemini 2.5 Pro is proprietary.
Which ranks higher on the Chatbot Arena leaderboard?
Claude Opus 4.5 ranks higher with ELO 1380 vs 1360.
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