Claude Opus 5.5 (Canary Checkpoint) vs Gemini 4 Pro (Leaked Benchmark)

A direct, empirical evaluation of Claude Opus 5.5 (Canary Checkpoint) (Anthropic) against Gemini 4 Pro (Leaked Benchmark) (Google DeepMind).

Claude Opus 5.5 (Canary Checkpoint)

Developed by Anthropic · Frontier Mixture-of-Experts Architecture parameters

Autonomous repository issue resolution (81.4% SWE-bench Verified), native 3D glTF/OBJ mesh synthesis, and sub-300ms time-to-first-token.

Gemini 4 Pro (Leaked Benchmark)

Developed by Google DeepMind · Proprietary Omni-Modal Unified Diffusion Transformer parameters

Repository-scale 2M-token refactoring (88.7% DeepSWE v1.1), headless shell execution (95.3% Terminal-Bench 2.1), and multimodal desktop agent autonomy (86.8% OSWorld 2.0).

Metric Claude Opus 5.5 (Canary Checkpoint) Gemini 4 Pro (Leaked Benchmark)
SWE-bench Verified 81.4% 88.7%
MMLU-Pro 94.2% 93.8%
MATH-500 97.9% 97.8%
Context Window 1,000,000 tokens 2,000,000 tokens
Input Pricing (per 1M) $5.00 $2.25
Output Pricing (per 1M) $25.00 $11.25