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GPT-5.2

openai/gpt-5.2
  • OpenAI
  • Family · GPT-5
  • Released 11 Dec 2025
  • File · Image · Text → Text
  • Reasoning · adjustable
  • Tools · JSON · Vision
Spec & list price
Context391K
Max output128K
Input / 1M$1.75
Output / 1M$14.008× input
Scores · standing
Intelligence30.4#63/489
Usage
Tokens / day3.3B▼ 13% 7d
Usage rank#139
Requests / day167.5K
Tool calls / req0.22
Per request · 30 days
Avg input7.0K0.5× median
Avg output3090.4× median
Cache hit68%about median
Reasoning share50%0.9× median
Tool-call failures0.3%0.2× median

Benchmarks

bar = share of the top score · Benchmark data: Artificial Analysis
AIME 2025#1 of 206
99.0%
Math index#1 of 206
99.0
LiveCodeBench#4 of 269
89.4%
MMLU-Pro#7 of 273
87.4%
GPQA Diamond#40 of 445
90.3%
Long-context reasoning#25 of 393
82.7%
IFBench#29 of 328
75.4%
τ²-Bench#78 of 319
84.8%
Speed · median across 3 providers, latest day
Output speed#219/33352 tok/s1.3× slower than median
Fastest provider90 tok/sbest of 3 providers
First token#2542.06 s2.0× longer than median

#5 cheapest of 10 with a similar score

Value
Intelligence Index
2025303540$1$2$5$10$20GPT-5.2
Blended price per 1M tokens (log)
Family progress
Intelligence Index
2025303540SepOctNovDec2026FebMarAprGPT-5.2
  • Family releases38.4

Technical details

Reasoning
on · medium
Tokenizer
GPT
Moderation
moderated
Reasoning effort
  • xhigh
  • high
  • medium · default
  • low
  • none
Request parameters 11
  • tools
  • tool_choice
  • response_format
  • structured_outputs
  • reasoning
  • reasoning_effort
  • include_reasoning
  • max_tokens
  • max_completion_tokens
  • seed
+1 more
  • verbosity

Interesting facts

  1. 2× the output room of similar models (128.0K against a 65.5K median).
  2. Weekdays average 7.5B tokens a day against 3.6B on weekends.

When to use

Best for

  • Math and competition-style reasoning
  • Coding with deep reasoning effort
  • Long document analysis
  • Image and file understanding
  • Offline bulk jobs via the batch variant

Think twice for

  • Low-cost high-volume chat
  • Self-hosting (closed weights)
  • Latency-critical interactive apps

Research papers

Same family

GPT-5

Alternatives

other vendors · similar capability

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