GPT-5.2 is an OpenAI GPT-5-series model with strong reasoning and long-context performance.
Added Dec 11, 2025
Context Window
400.0K
Max Output
128.0K
Avg output tokens (7d)
229 tokens
Input Price (Auto)
$1.75/1M
Output Price (Auto)
$14.00/1M
Cache Read (Auto)
$0.18/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
19.6
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
71.2%
Better than 50% of models compared
HLE
Humanity's Last Exam
8.0%
Better than 49% of models compared
IFBench
Instruction-following benchmark
47.4%
Better than 56% of models compared
T²-Bench Telecom
Conversational AI agents in dual-control scenarios
46.5%
Better than 50% of models compared
AA-LCR
Long context reasoning evaluation
45.7%
Better than 44% of models compared
CritPt
Research-level physics reasoning
0.6%
Coding
Terminal-Bench Hard
Agentic coding and terminal use
31.8%
Better than 75% of models compared
LiveCodeBench
Contamination-free coding benchmark
66.9%
Better than 75% of models compared
Math
AIME 2025
American Invitational Mathematics Examination 2025
51.0%
Better than 49% of models compared
Knowledge
MMLU-Pro
Professional and academic subject knowledge
81.4%
Better than 74% of models compared
AA-Omniscience Accuracy
Proportion of correctly answered questions
30.8%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
62.3%
Last updated Sep 7, 2026
Artificial AnalysisProviders
Auto routing is available for this model. Explicit provider selection is not available.
Loading provider options…
Related text models
Compare GPT 5.2 with similar models from the same provider or model family.
GPT 6 Astra Pro
openai/gpt-6-astra-proGPT 6 Astra in Pro reasoning mode. Uses additional model work for difficult tasks, with higher latency and token usage at the same per-token rates. Reasoning effort remains independently configurable.
GPT 6 Astra
openai/gpt-6-astraOpenAI's most capable model for the hardest end-to-end work, with state-of-the-art performance in computer use, browsing, software engineering, science, and professional tasks. Astra is designed to carry long, multistep workflows across code, browsers, and professional software through to a finished result.
GPT 5.6 Luna
openai/gpt-5.6-lunaGPT-5.6 Luna is the fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume chat, classification, lightweight agentic workflows, and latency-sensitive reasoning tasks.
GPT 5.6 Luna Pro
openai/gpt-5.6-luna-proGPT-5.6 Luna with Pro reasoning mode. Pro mode performs more model work for difficult tasks; reasoning effort remains independently configurable and defaults to medium.
GPT 5.6 Sol
openai/gpt-5.6-solGPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, agentic workflows, command-line work, and multi-step professional tasks.
GPT 5.6 Sol Pro
openai/gpt-5.6-sol-proGPT-5.6 Sol with Pro reasoning mode. Pro mode performs more model work for difficult tasks; reasoning effort remains independently configurable and defaults to medium.