88 models ranked by quality score, sorted by rank with pricing and best-value picks.
Verdict
For reasoning, use GPT 6 Astra for quality or GPT 5.6 Luna for cost. The quality gap between #1 and #2 is 1 points.
Rankings
GPT 6 Astra ranks #1 for reasoning with a confidence score of 93/100.
GPT 5.6 Luna is the best value for reasoning at $0.20/$1.20 per million tokens with a confidence of 86/100.
Confidence scores are a third-party benchmark snapshot from week 26 of 2026. This snapshot is 17 weeks old, so treat the scores as directional and validate against your own evals.
Per-call cost for the highest-ranked models on this task.
GPT 6 Astra cost calculator
93/100 · $10.00 / $50.00 per MTok
Claude Fable 5.1 cost calculator
92/100 · $10.00 / $50.00 per MTok
Claude Opus 5.5 cost calculator
92/100 · $4.00 / $20.00 per MTok
GPT 5.6 Sol cost calculator
92/100 · $4.00 / $20.00 per MTok
Claude Opus 5 cost calculator
91/100 · $5.00 / $25.00 per MTok
GPT 5.6 Terra cost calculator
91/100 · $2.00 / $12.00 per MTok
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.