Side-by-side comparison of pricing, context window, benchmarks, capabilities, and license. Data sourced from the Interestana AI Index, kept current as developers update their models.
Model A — Anthropic
Claude 4 Opus is Anthropic’s most capable model for long-horizon agentic work, multi-step reasoning, and complex coding projects.
Model B — Google DeepMind
Gemini 2.5 Pro is Google’s flagship reasoning model with a 2 million-token context window, native multimodal understanding, and built-in thinking before responding.
| Property | Claude 4 Opus | Gemini 2.5 Pro |
|---|---|---|
| Released | May 22, 2025 | Mar 25, 2025 |
| Developer | Anthropic | Google DeepMind |
| Type | reasoning | multimodal |
| License | proprietary | proprietary |
| Context window | 200,000 | 2,000,000 |
| Parameters | — | — |
| Input $/M tokens | $15.00 | $1.25 |
| Output $/M tokens | $75.00 | $10.00 |
Bold green values indicate the winner on that dimension where comparison is meaningful (lower price wins; bigger context wins; more open license wins; newer date wins).
| Benchmark | Claude 4 Opus | Gemini 2.5 Pro |
|---|---|---|
| GPQA Diamond | 79.6% | 84% |
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