Comparing 2 models

Claude Opus 4.5 vs Gemini 3.1 Pro Preview

Facts first, then task-specific rankings. A highlighted cell is better only for that row, not universally.

metric
Model 1Claude Opus 4.5
Model 2Gemini 3.1 Pro Preview
Best for
Agentic Coding (#1)
Business Writing (#4)
Provider
anthropic
google
Context
200K
1.0MBest
Input / 1M
$5
$2Best
Output / 1M
$25
$12Best
Tool use
yesBest
yesBest
Vision
yesBest
yesBest
Reasoning
yesBest
yesBest
Open-weight
Released
Nov 24, 2025
Feb 19, 2026