GPT-5 Pro
Higher-accuracy GPT-5 tier for tough analysis, coding reviews, and planning
ECI STANDING#43 of 266
SCORE150.29148.83–152.9 CI
FRONTIER LAGLaunched in the leadNothing released before it had scored higher.
SCORES LIKE THESE MODELS
Full Epoch Capabilities Index ranking ↗Inkling-SmallThinking Machines · Jul 2026150.15
Claude Opus 4.5Anthropic · Nov 2025150.11Kimi K2.7 CodeMoonshot · Jun 2026150.07GPT-5OpenAI · Aug 2025150.0RELEASE DATEOct 6, 2025
WEIGHTSClosed weights
CONTEXT WINDOW400K
MAX OUTPUT272K
REASONINGYes
TOOL CALLINGYes
INPUTStext, image
OUTPUTStext
Specifications from Models.dev. Availability and limits may differ by provider. Benchmark scores come from Epoch AI under CC BY 4.0.