Claude Opus 4.6 vs Gemini 2.5 Pro
Claude Opus 4.6 and Gemini 2.5 Pro are the two strongest reasoning models in 2026. Claude leads on code generation and SWE-bench, while Gemini offers a massive 1 million token context window at significantly lower pricing. Your choice depends on whether you prioritize raw reasoning or context capacity and cost.
Head-to-Head Specs
| Spec | Claude Opus 4.6 | Gemini 2.5 Pro |
|---|---|---|
| Provider | Anthropic | |
| Input Price | $15.00/1M | $1.25/1M |
| Output Price | $75.00/1M | $10.00/1M |
| Context Window | 200K | 1M |
| Released | 2026-03 | 2025-03 |
| Capabilities | text, vision, tool-use, code | text, vision, tool-use, code, reasoning |
Benchmark Scores
| Benchmark | Claude Opus 4.6 | Gemini 2.5 Pro | Winner |
|---|---|---|---|
| MMLU-Pro | 92.4 | 91.2 | Claude |
| HumanEval | 95.1 | 93.8 | Claude |
| GPQA Diamond | 74.2 | 71.9 | Claude |
| MATH | 91.8 | 90.5 | Claude |
| SWE-bench | 62.3 | 59.4 | Claude |
See the full benchmark leaderboard for all models.
Category Breakdown
Claude scores 95.1 on HumanEval vs Gemini at 93.8
Claude leads slightly on GPQA Diamond (74.2 vs 71.9)
1M tokens vs 200K tokens, a 5x advantage
Gemini costs $1.25/$10 vs Claude at $15/$75 per 1M tokens
Claude scores 91.8 on MATH vs Gemini at 90.5
Claude leads real-world engineering tasks (62.3 vs 59.4)
Choose Claude Opus 4.6 when:
- ▸Highest-quality code generation
- ▸Complex multi-step reasoning tasks
- ▸Agentic tool use workflows
- ▸Tasks where accuracy matters more than cost
Choose Gemini 2.5 Pro when:
- ▸Processing entire codebases or long documents
- ▸Cost-sensitive production workloads
- ▸Video and large multimodal inputs
- ▸Google Cloud ecosystem integration
Frequently Asked Questions
Which is better, Claude Opus 4.6 or Gemini 2.5 Pro?
It depends on your use case. Claude Opus 4.6 from Anthropic excels at highest-quality code generation, while Gemini 2.5 Pro from Google is better for processing entire codebases or long documents. See the full comparison above for detailed benchmarks and pricing.
How much does Claude Opus 4.6 cost compared to Gemini 2.5 Pro?
Claude Opus 4.6 costs $15.00 input and $75.00 output per 1M tokens. Gemini 2.5 Pro costs $1.25 input and $10.00 output per 1M tokens.
What is the context window difference between Claude Opus 4.6 and Gemini 2.5 Pro?
Claude Opus 4.6 supports 200K tokens, while Gemini 2.5 Pro supports 1M tokens.