Claude Opus 4.6 vs Gemini 3.1 Pro: Specs & Benchmark Comparison
| Characteristic | Claude Opus 4.6 | Gemini 3.1 Pro |
|---|---|---|
| Company | Anthropic | |
| Release Date | February 4, 2026 | February 19, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 128K | 66K |
| Input Price / 1M | $5.00 | $2.50 |
| Output Price / 1M | $25.00 | $15.00 |
| Average Score | 0.8 | 0.8 |
| Benchmarks | ||
| CharXiv-R | 0.7 | 0.9 |
| ARC-AGI v2 | 0.7 | 0.8 |
| Humanity's Last Exam | 0.5 | 0.5 |
| GPQA | 0.9 | 0.9 |
| SWE-Bench Verified | 0.8 | 0.8 |
Visual Benchmark Comparison
Claude Opus 4.6
Gemini 3.1 Pro
CharXiv-R0.7 vs 0.9
0.7
0.9
ARC-AGI v20.7 vs 0.8
0.7
0.8
Humanity's Last Exam0.5 vs 0.5
0.5
0.5
GPQA0.9 vs 0.9
0.9
0.9
SWE-Bench Verified0.8 vs 0.8
0.8
0.8
Verdict
Gemini 3.1 Pro leads in 3 out of 5 comparison categories.
Overall Performance
Both models show comparable average scores: Claude Opus 4.6 — 0.8, Gemini 3.1 Pro — 0.8.
Programming
On SWE-Bench, both models are nearly equal: Claude Opus 4.6 — 0.8, Gemini 3.1 Pro — 0.8.
API Cost
Gemini 3.1 Pro is 1.7x cheaper: input $2.50/1M vs $5.00/1M tokens.
Context Window
Gemini 3.1 Pro supports a larger context: 1M vs 1M tokens.
Recency
Gemini 3.1 Pro is newer: released 2/19/2026 vs 2/4/2026.
More About These Models
Related Comparisons
The Claude Opus 4.6 and Gemini 3.1 Pro comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Opus 4.6 or Gemini 3.1 Pro page. See also the complete list of AI model comparisons.