llm model
Claude Sonnet 4.6 vs Gemini 2.5 Pro
Claude and Gemini both chase the coding-and-reasoning crown. Gemini leans harder on ultra-long context; Claude leans harder on agentic tool use.
Contender A
Claude Sonnet 4.6
Anthropic's production model
Contender B
Gemini 2.5 Pro
Google's flagship reasoning model
Side-by-side comparison
Metric
Claude Sonnet 4.6
Gemini 2.5 Pro
Context window
200K
1M+ (2M in Pro)
SWE-Bench
~70% verified
~64% verified
Native search
Via tools
Yes (Google)
Price (input)
$3 / 1M tok
$1.25 / 1M tok
When Claude Sonnet 4.6 is the right pick
Coding agents, tool use, long multi-turn chats.
When Gemini 2.5 Pro is the right pick
Retrieval-free long-context QA, cost-sensitive reasoning.
Verdict
Claude wins on agentic coding; Gemini wins when you need to stuff a whole codebase or book into one prompt and when price-per-token matters.
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