Versions side by side — rows that differ across these models are highlighted.
| 3 models | Cl Anthropic Claude Opus 4.8 View → | Qw Alibaba Qwen 3.7 Max View → | Cl Anthropic Claude Opus 4.7 View → |
|---|---|---|---|
| Maker | Anthropic | Alibaba | Anthropic |
| Tier | Flagship | Flagship | Flagship |
| Status | Active | Default | Active |
| Context window | 1M ctx | 1M ctx | 1M ctx |
| Released | May 28, 2026 | May 1, 2026 | Apr 16, 2026 |
| API string | claude-opus-4-8 | qwen3.7-max | claude-opus-4-7 |
| Note |
| Designated current flagship; reliability-focused Opus (4x less likely than 4.7 to let its own code flaws pass). 1M context, $5/$25, effort levels through xhigh/max, Fast mode at $10/$50. Guide positions Fable 5 one tier above it. |
| Current closed-weights flagship; Intelligence Index v4.0 score 56.6 (top Chinese model); lowest reported hallucination rate (22.9%). $2.50/$7.50 per 1M tokens. |
| Prior Opus flagship, superseded by 4.8 (still active/available). Tripled image resolution to 3.75MP, introduced xhigh effort and self-verification, 87.6% SWE-bench Verified. $5/$25. |
