Claude Sonnet 4.6 vs Gemini 2.5 Pro
2026 - Pricing, benchmarks, and use case comparison
Quick take
- •Gemini 2.5 Pro is 58% cheaper on input tokens - better for high-volume workloads.
- •Gemini 2.5 Pro has a 1M context window - 5x larger than Claude Sonnet 4.6's 200K. Better for long documents and large codebases.
Specs comparison
| Claude Sonnet 4.6 | Gemini 2.5 Pro | |
|---|---|---|
| Provider | Anthropic | Google DeepMind |
| Type | Closed source | Closed source |
| Context window | 200K | ✓1M |
| Input / 1M tokens | $3.00 | ✓$1.25 |
| Output / 1M tokens | $15.00 | $10.00 |
| Release date | 2025-07 | 2025-03 |
Benchmarks
| Benchmark | Claude Sonnet 4.6 | Gemini 2.5 Pro |
|---|---|---|
| SWE-bench Verified | ~49% | 63.2% |
| MMLU | ~88% | 90.9% |
| HumanEval | ~93% | - |
| GPQA Diamond | - | 86.4% |
Scores sourced from official provider release posts.
Strengths
Claude Sonnet 4.6
- ✓Strong coding and debugging across most languages
- ✓Excellent at following multi-step instructions
- ✓200K context handles entire codebases
- ✓Fast enough for interactive use cases
- ✓Solid function calling and structured output
Gemini 2.5 Pro
- ✓Largest commercial context window (1M tokens)
- ✓Top benchmark scores on science and math
- ✓Strong multimodal: video, audio, images
- ✓Competitive pricing for the capability tier
- ✓Native Google Search and code execution tools
Which should you choose?
Choose Claude Sonnet 4.6 if you need...
- →Production API integrations
- →Coding assistants and IDEs
- →Document analysis
- →Agentic workflows
Choose Gemini 2.5 Pro if you need...
- →Very long document analysis
- →Video and multimodal understanding
- →Scientific research tasks
- →Large codebase comprehension