ModelDial · Model results

Claude Opus 5.5

Claude Opus 5.5 has 2 tested configurations. Its highest published overall score is 91.5 at max. Inspect dimension scores, evaluation time, and cost below.

2026-09-22

Overall score91.5

Claude Opus 5.5 · max

Backend engineering: 81
Frontend interaction: 97
Knowledge & reasoning: 100

Evaluation time: 66m 3s
Cost: $18.42

Complete evaluation · API cost

Overall rank 5 / 52 models · Best tested effortBackend tested · 9/23/2026Tasks & methodology

Results by reasoning effort

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Model / effort	Overall	Backend engineering	Frontend interaction	Knowledge & reasoning	Total eval. time	Total ref. cost	Compare
	86.4	81	85	95	61m 15s	$6.29
	91.5	81	97	100	66m 3s	$18.42

Score breakdown

Effort

Overall score: 91.5
Evaluation time: 66m 3s
Cost: $18.42

Service logic, error handling and verification.

Contracts and boundaries18 / 20

API contracts, input validation and boundary behavior.

Retries and failures16 / 20

Recovery, retry conditions and failure handling.

CI and adversarial review16 / 20

Verification plans, risk detection and audit evidence.

Transactions and consistency16 / 20

State transitions, concurrency and consistency.

Caching and regression15 / 20

Invalidation, data updates and regression coverage.

What changes with higher reasoning effort

Compare overall scores, cost, and time across neighboring tested efforts.

xhigh max

Overall: +5.1 pts
Cost: +$12.13
Evaluation time: +7.8%

View full comparison

Model and effort comparisons

GPT-6.1 Sol vs Claude Opus 5.5

Compare each model at its highest-scoring tested overall effort. Start with the dimension relevant to your task, then weigh evaluation time and cost.

Data snapshot published · 11/13/2026Scoring & cost notes