Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Gemini 2.5 Pro Preview (May' 25) | Claude Sonnet 5 (Non-reasoning, High Effort) |
|---|---|---|
| Input ($/M tokens) | $1.25 | $2 |
| Output ($/M tokens) | $10 | $10 |
Data from Artificial Analysis API — 12 benchmarks
Gemini 2.5 Pro Preview (May' 25) is cheaper overall. Its blended price (3:1 input/output ratio) is $3.44/M tokens vs $4.00/M for Claude Sonnet 5 (Non-reasoning, High Effort).
It's a tie — both models win 4 benchmarks each across 12 evaluated categories. See the detailed benchmark chart above for per-category results.
Both models have comparable generation speeds.
Choose based on your priorities: Gemini 2.5 Pro Preview (May' 25) for lower cost, both perform similarly on benchmarks, and both have comparable speed. For latency-sensitive apps, check the TTFT comparison above.