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 Claude 4.6 SonnetAnthropic |  Gemini 2.5 Pro | Gemini 2.5 Flash | |
|---|---|---|---|
| Vendor | Anthropic | ||
| Family | Claude | Gemini | Gemini |
| Release date | 2026-02-17 | 2025-03-25 | 2025-06-17 |
| Context window | 1,000,000 tokens | 2,000,000 tokens | 1,000,000 tokens |
| Parameters | — | — | — |
| Modality | text, vision | text, vision, audio, video | text, vision, audio |
| License | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary |
| Description | Anthropic's mid-tier flagship — released 12 days after Opus 4.6 and matching most of its capabilities at ~40% the API cost ($3/$15 per 1M tokens). 1M-token context. | Predecessor to Gemini 3 Pro. | Google's cost-and-latency-optimized Gemini 2.5 variant. Generally available June 2025 — designed for high-throughput agentic workflows with sub-second first-token latency. |
| Links | |||
| Benchmarks | |||
| MMLU-Pro | 85.4% | 84.1% | — |
| GPQA-D | 85.8% | 84.0% | — |
| HumanEval | 95.9% | — | — |
| Aider | 83.6% | — | — |
| AIME-25 | 87.4% | — | — |
| LiveCB | 73.8% | — | — |
| MMMU | — | 72.4% | — |
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