Claude Opus 5.5 effort guide: ★ Med recommended, ability and cost by effort
Claude Opus 5.5 (Anthropic): the recommended effort is ★ Med, ability 55.4 at $2.90 per reference coding task. One step up to High: +4.8 ability for ×1.37 the cost.
Ability, cost and time at each effort
Claude Opus 5.5 · Anthropic · ★ Med
| Effort | Ability | vs ★ | Cost / task | Cost × | Time × |
|---|---|---|---|---|---|
| Low | 38.8 | -16.6 | $1.23 | ×0.42 | — |
| ★ Med | 55.4 | — | $2.90 | ×1.00 | — |
| High | 60.2 | +4.8 | $3.98 | ×1.37 | — |
| XHigh | 64.0 | +8.6 | $5.78 | ×1.99 | — |
| Max | 67.5 | +12.1 | $11.10 | ×3.82 | — |
- ⚡ Fast mode (Claude Code): usage-credits ×2, api ×2; up to ×2.5
Cost is the API cost of one reference coding task; cost × and time × are relative to the ★ recommended effort. Open in the effort console
In Anthropic's lineup
Strongest · Best value
- Claude Haiku 5.5 → Claude Sonnet 5.5: ability +8.3, cost ×3.09
- Claude Sonnet 5.5 → Claude Opus 5.5: ability +8.5, cost ×1.93
Where to use it
- API:
claude-opus-5-5 - Claude Code:
claude-opus-5-5
Other models from this maker: Claude Haiku 5.5 · Claude Fable 5.1 · Claude Sonnet 5.5
Data published 2026-10-15 11:33 UTC · All data is also available through the public API