ModelRefs / Gemini 2.5 Pro vs Claude Opus 4
Gemini 2.5 Pro vs Claude Opus 4
Gemini 2.5 Pro vs Claude Opus 4: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
Claude Opus 4: Claude Opus 4 is Anthropic's May 2025 hybrid-reasoning model for complex coding, reasoning, multimodal analysis, and long-running agent workflows. The dated claude-opus-4-20250514 snapshot was retired on Anthropic-operated platforms on June 15, 2026 and is retained as a historical evaluation and migration reference.
Gemini 2.5 Pro: Gemini 2.5 Pro is Google DeepMind's experimental thinking model with a 2M-token multimodal context window, released in March 2025. It topped the LMSys Chatbot Arena leaderboard at launch and introduced adaptive reasoning budgets that balance response quality against latency.
Context window: Claude Opus 4 accepts up to 200,000 tokens, Gemini 2.5 Pro up to 2,000,000. Confirm the limit for your specific deployment channel before relying on it.
Claude Opus 4 vs Gemini 2.5 Pro at a glance
| Attribute | Claude Opus 4 | Gemini 2.5 Pro |
|---|---|---|
| Provider | Anthropic | |
| Released | 2025-05-22 | 2025-06-17 |
| Context window | 200,000 tokens | 2,000,000 tokens |
| Input price | $15/M tokens | $1.25/M tokens |
| Output price | $75/M tokens | $10/M tokens |
| Licence | Proprietary | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text, vision | text, vision, audio, video |
Benchmarks reported for both
| Benchmark | Claude Opus 4 | Gemini 2.5 Pro | Reported |
|---|---|---|---|
| SWE-Bench Verified (resolved) | 72.5 | 67.2 | 2025-05-22 / 2025-07-02 |
Each row compares the same benchmark, the same reported metric, and the same task set. Scores are as published by their cited sources on the dates shown. Different runs still use different harnesses and prompts, so treat these as directional evidence rather than a head-to-head result.
Where they differ most
- Coding: Claude Opus 4 60%, Gemini 2.5 Pro 66%. Gemini 2.5 Pro leads on this dimension.
- Agentic: Claude Opus 4 63%, Gemini 2.5 Pro 66%. Gemini 2.5 Pro leads on this dimension.
Capability scores are ModelRefs' own derived signals, not vendor claims or benchmark results. Validate against your own workload before relying on them.
Continue your research
Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to Gemini 2.5 Pro vs Claude Opus 4.
Frequently asked questions
Which is better, Gemini 2.5 Pro or Claude Opus 4?
Gemini 2.5 Pro and Claude Opus 4 target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is Gemini 2.5 Pro cheaper than Claude Opus 4?
Compare $0.00125 vs $0.0150 on this page.