What is the difference between Claude Opus 4.6 and Gemini 3.1 Pro Preview?

Claude Opus 4.6 is developed by Anthropic while Gemini 3.1 Pro Preview is developed by Google AI. Claude Opus 4.6 has a 1.0M token context window vs Gemini 3.1 Pro Preview's 1.0M. in 238 community votes on Rival, Gemini 3.1 Pro Preview wins 70% of head-to-head matchups. These results are based on blind head-to-head voting across 53 challenges.

Which is better, Claude Opus 4.6 or Gemini 3.1 Pro Preview?

Based on 238 community votes on Rival, Gemini 3.1 Pro Preview wins 70% of head-to-head matchups against Claude Opus 4.6. Gemini 3.1 Pro Preview is strongest in Web Design, Image Generation, Reasoning.

How much does Claude Opus 4.6 cost compared to Gemini 3.1 Pro Preview?

Claude Opus 4.6 costs $5/M input tokens and Gemini 3.1 Pro Preview costs $2/M input tokens. Gemini 3.1 Pro Preview is $3.00/M cheaper per input. Gemini 3.1 Pro Preview also wins more often in community votes, making it the better value.

How are Claude Opus 4.6 vs Gemini 3.1 Pro Preview 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. 238 votes have been collected for this pair across 53 challenges. All vote data is part of Rival's open dataset.

Updated Feb 2026

Claude Opus 4.6vsGemini 3.1 Pro Preview

Gemini 3.1 Pro Preview wins 70% of 238 blind community votes against Claude Opus 4.6 on Rival.

Claude Opus 4.6 and Gemini 3.1 Pro Preview compared across 53 shared prompts
Spec	Claude Opus 4.6	Gemini 3.1 Pro Preview
Win rate	30%	70%
Input price	$5/M tokens	$2/M tokens
Output price	$25/M tokens	$12/M tokens
Context window	1.0M tokens	1.0M tokens
Weights	Closed	Closed
Free API (OpenRouter)	No	No
Released	Feb 2026	Feb 2026
SWE-bench Verified	80.8%	80.6%