What is the difference between Claude Sonnet 4.5 and Gemini 2.5 Pro Preview 06-05?

Claude Sonnet 4.5 is developed by Anthropic while Gemini 2.5 Pro Preview 06-05 is developed by Google AI. Claude Sonnet 4.5 has a 200K token context window vs Gemini 2.5 Pro Preview 06-05's 1.0M. in 22 community votes on Rival, Claude Sonnet 4.5 wins 67% of head-to-head matchups. These results are based on blind head-to-head voting across 38 challenges.

Which is better, Claude Sonnet 4.5 or Gemini 2.5 Pro Preview 06-05?

Based on 22 community votes on Rival, Claude Sonnet 4.5 wins 67% of head-to-head matchups against Gemini 2.5 Pro Preview 06-05. Claude Sonnet 4.5 is strongest in Web Design, Image Generation, Conversation. However, Gemini 2.5 Pro Preview 06-05 leads in Analysis.

How much does Claude Sonnet 4.5 cost compared to Gemini 2.5 Pro Preview 06-05?

Claude Sonnet 4.5 costs $3/M input tokens and Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens. Gemini 2.5 Pro Preview 06-05 is $1.75/M cheaper per input. The more expensive model wins 67% of duels, so the premium may be justified by quality.

How are Claude Sonnet 4.5 vs Gemini 2.5 Pro Preview 06-05 votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 22 votes have been collected for this pair across 38 challenges. All vote data is part of Rival's open dataset.

Updated Sep 2025

Claude Sonnet 4.5vsGemini 2.5 Pro Preview 06-05

Claude Sonnet 4.5 wins 67% of 22 blind community votes against Gemini 2.5 Pro Preview 06-05 on Rival.

Claude Sonnet 4.5 and Gemini 2.5 Pro Preview 06-05 compared across 38 shared prompts
Spec	Claude Sonnet 4.5	Gemini 2.5 Pro Preview 06-05
Win rate	67%	33%
Input price	$3/M tokens	$1.25/M tokens
Output price	$15/M tokens	$10/M tokens
Context window	200K tokens	1.0M tokens
Weights	Closed	Closed
Free API (OpenRouter)	No	No
Released	Sep 2025	Jun 2025
SWE-bench Verified	77.2%	67.2%