Claude Opus 5.5 (Canary Checkpoint) vs Gemini 4 Argon

A direct, empirical evaluation of Claude Opus 5.5 (Canary Checkpoint) (Anthropic) against Gemini 4 Argon (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 Argon

Developed by Google DeepMind · Frontier Coding & Security Engine on TPU v6e Ironclad parameters

Automated GitHub issue resolution (78.4% SWE-bench Verified), cybersecurity exploit auditing (91.4% CyberSecBench), 2M token context buffer, and aggressive $1.20/$4.80 API pricing.

Metric Claude Opus 5.5 (Canary Checkpoint) Gemini 4 Argon
SWE-bench Verified 81.4% 78.4%
MMLU-Pro 94.2% 93.6%
MATH-500 97.9% 97.6%
Context Window 1,000,000 tokens 2,000,000 tokens
Input Pricing (per 1M) $5.00 $1.20
Output Pricing (per 1M) $25.00 $4.80