Claude Opus 5 (Adaptive Reasoning, High Effort) vs Kimi K2.7 Code
Which is better for the money: Claude Opus 5 (Adaptive Reasoning, High Effort) 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.
Trade-off
Verdict
Depends on your budget
Claude Opus 5 (Adaptive Reasoning, High… scores 21.9 points higher (48.2 vs 26.3) but costs 4.4× as much to run the benchmark ($4332 vs $993; flagship vs premium cost classes). They are not alternatives at one budget: pick Claude Opus 5 (Adaptive Reasoning, High… when you need intelligence above 26.3, and Kimi K2.7 Code when 26.3 is enough.
| Metric | Claude Opus 5 (Adaptive Reasoning, High Effort) | Kimi K2.7 Code | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 48.2 | 26.3 | −45.4% Kimi K2.7 Code is 45.4% less intelligent |
| Total AA cost (lower is better) | $4,331.68 | $992.88 | −77.1% Kimi K2.7 Code is 77.1% cheaper |
| End-to-end time (lower is better) | 29.21s | 41.22s | +41.1% Kimi K2.7 Code is 41.1% slower |
| Price per 1M tokens (in / out) | $5.00 / $25.0 | $0.95 / $4.00 | |
| Input modalities | Not reported | Not reported |
Kimi K2.7 Code vs Claude Opus 5 (Adaptive Reasoning, High Effort): 45.4% less intelligence, 77.1% less cost to run the AA benchmark, and 41.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Opus 5 (high) is off the frontier: at the same or lower cost, GPT-6 Astra (xhigh) scores 52.50 for $3803.
- Kimi K2.7 Code is off the frontier: at the same or lower cost, GLM-5.3-Flash scores 41.90 for $280.
Claude Opus 5 (Adaptive Reasoning, High Effort)Kimi K2.7 CodeToday's Pareto frontierOpen-weights frontierEvery other model
Matchup
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