GPT-5.2 vs GPT-5.6 Luna
45 SHARED BENCHMARKSAcross 45 shared benchmarks, GPT-5.2 scores higher on 14 and GPT-5.6 Luna on 31. The widest gap is τ-Bench V3 · Banking, where GPT-5.6 Luna scores 31.1 against 11.1. GPT-5.6 Luna is the cheaper of the two on tracked API pricing ($0.20 against $1.75 per million input tokens).
At a glance
Release dates per Artificial Analysis. Prices: Artificial Analysis for GPT-5.2; Artificial Analysis for GPT-5.6 Luna. ◆ = independently verified score.
Where each leadsby capability area · benchmark wins
Biggest gaps
GPT-5.2 pulls furthest ahead on
- AA-Omniscience · Non-hallucination18.8 vs 7.4
- MRCR v2 8 needle 128k (average)83.8 vs 74.8
- LiveBench · Mathematics93.2 vs 87.2
GPT-5.6 Luna pulls furthest ahead on
- τ-Bench V3 · Banking31.1 vs 11.1
- SWE-bench Pro62.7 vs 29.9
- FrontierMath Tier 458.5 vs 31.7
Every shared benchmark45 · grouped by area
Reasoning 6
Coding 6
Agentic 4
Factuality 3
Instruction Following 1
Long Context 2
Math 5
Multimodal 3
Other shared benchmarks 15
Each score is the one the model's own page shows — the most authoritative tracked result for that benchmark, on the benchmark's standard methodology (source-attributed). ↓ marks lower-is-better metrics; ◆ an independently verified score. Open either model for its full surface, provenance and pricing. Quoted rates are the price-setter row we currently track for each model — its direct or vendor-official listing where one exists (direct, direct), otherwise the lowest tracked offer.