#12
GPT-5.5
OpenAI · Proprietary · Reasoning · 1M context
72/ 100 composite
Released 2026-04-23
Benchmark Scores by Category
Coding
44.0
Knowledge
79.2
Reasoning
88.0
Agentic
85.0
Math
71.4
Multimodal
68.8
Scores based on weighted benchmarks: SWE-bench, LiveCodeBench (Coding); HLE, MMLU-Pro (Knowledge); ARC-AGI-2, LongBench v2 (Reasoning); Terminal-Bench, BrowseComp (Agentic); FrontierMath, AIME (Math).
API Pricing
Input
$5
per 1M tokens
Output
$30
per 1M tokens
Value Score
2.4
score per $1 output
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