Claude Opus 5.5 (Canary Checkpoint) vs DeepSeek V5 (Leaked Staging)
A direct, empirical evaluation of Claude Opus 5.5 (Canary Checkpoint) (Anthropic) against DeepSeek V5 (Leaked Staging) (DeepSeek AI).
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.
DeepSeek V5 (Leaked Staging)
Developed by DeepSeek AI · 1.8 Trillion (Sparse MoE) parameters
Autonomous coding agents scoring 81.4% on SWE-bench Verified, zero-telemetry self-hosting, sub-cent 1M-token processing, and formal mathematical proofs.
| Metric | Claude Opus 5.5 (Canary Checkpoint) | DeepSeek V5 (Leaked Staging) |
|---|---|---|
| SWE-bench Verified | 81.4% | 81.4% |
| MMLU-Pro | 94.2% | 87.5% |
| MATH-500 | 97.9% | 96.8% |
| Context Window | 1,000,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $5.00 | $0.12 |
| Output Pricing (per 1M) | $25.00 | $0.48 |