Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) vs Kimi K2.7 Code
Which is better for the money: Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) by Anthropic or Kimi K2.7 Code by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-09-09.
Depends on your budget
Claude Fable 5 (Adaptive Reasoning, Max… scores 23.4 points higher (49.7 vs 26.3) but costs 11× as much to run the benchmark ($11161 vs $993; flagship vs premium cost classes). They are not alternatives at one budget: pick Claude Fable 5 (Adaptive Reasoning, Max… when you need intelligence above 26.3, and Kimi K2.7 Code when 26.3 is enough.
| Metric | Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) | Kimi K2.7 Code | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 49.7 | 26.3 | −47.1% Kimi K2.7 Code is 47.1% less intelligent |
| Total AA cost (lower is better) | $11,160.86 | $992.88 | −91.1% Kimi K2.7 Code is 91.1% cheaper |
| End-to-end time (lower is better) | 96.57s | 41.22s | −57.3% Kimi K2.7 Code is 57.3% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $0.95 / $4.00 | |
| Input modalities | Not reported | Not reported |
Kimi K2.7 Code vs Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback): 47.1% less intelligence, 91.1% less cost to run the AA benchmark, and 57.3% faster end-to-end.
Against the frontier
- Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) is off the frontier: at the same or lower cost, Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback) scores 53.20 for $9063.
- Kimi K2.7 Code is off the frontier: at the same or lower cost, GLM-5.3-Flash scores 41.90 for $280.
Compare something else
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5/kimi-k2-7-code · Markdown: /api/v1/compare/claude-fable-5/kimi-k2-7-code?format=md · llms.txt · agent skill