OpenAI: GPT-5.3 Chat
openai/gpt-5.3-chat
Context: 128,000In: $1.75/1MOut: $14.00/1M
GPT-5.3 Chat is an update to ChatGPT's most-used model that makes everyday conversations smoother, more useful, and more directly helpful. It delivers more accurate answers with better contextualization and significantly...
Intelligence
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Coding
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Agentic
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Metric profile
Trend over time
No history yet — first sync only. Trends appear over time.
Classic evals (curated from model cards)
OpenAI GPT — manually maintained, may lag releases
MMLU-Pro
79.6%
GPQA Diamond
81.5%
HumanEval
96.8%
MATH-500
93%