Claude Opus 4.5 vs Gemini 3 Pro: Specs & Benchmark Comparison
| Characteristic | Claude Opus 4.5 | Gemini 3 Pro |
|---|---|---|
| Company | Anthropic | |
| Release Date | November 23, 2025 | November 17, 2025 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 200K | 1.0M |
| Context (output) | 64K | 66K |
| Input Price / 1M | $5.00 | $2.00 |
| Output Price / 1M | $25.00 | $12.00 |
| Average Score | 0.9 | 0.9 |
| Benchmarks | ||
| GPQA | 0.9 | 0.9 |
| MMMLU | 0.9 | 0.9 |
Visual Benchmark Comparison
Claude Opus 4.5
Gemini 3 Pro
GPQA0.9 vs 0.9
0.9
0.9
MMMLU0.9 vs 0.9
0.9
0.9
Verdict
Gemini 3 Pro leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: Claude Opus 4.5 — 0.9, Gemini 3 Pro — 0.9.
API Cost
Gemini 3 Pro is 2.1x cheaper: input $2.00/1M vs $5.00/1M tokens.
Context Window
Gemini 3 Pro supports a larger context: 1M vs 200K tokens.
Recency
Both models were released around the same time: 11/23/2025 and 11/17/2025.
More About These Models
Related Comparisons
The Claude Opus 4.5 and Gemini 3 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 4.5 or Gemini 3 Pro page. See also the complete list of AI model comparisons.