OpenAI · Released Dec 11, 2025GPT-5.2 Pro
Higher-accuracy GPT-5.2 variant for tougher reasoning and review workflows.
- Capability
- 155.4ECI · #25 of 148
- Input
- $21.00per 1M tokens
- Output
- $168.00per 1M tokens
- Context
- 400K128K max output
What it costs
- Input
- $21.00per million tokens
- Output
- $168.00per million tokens
- Blended (3:1)
- $57.75pricier than 99% of priced models
Typical monthly bills
| Monthly usage | Estimated cost |
|---|---|
| Side project2M input + 0.5M output tokens | $126.00 |
| Team assistant25M input + 5M output tokens | $1,365 |
| Production app250M input + 50M output tokens | $13,650 |
Official OpenAI API price, as listed on models.dev.
Independent benchmarks
#25 of 148 scored models
The shaded band is Epoch AI’s confidence range (153.0–158.2); the tick marks the median scored model.
Scores from Epoch AI, run independently of OpenAI.
The details
- Lab
- OpenAI
- Released
- Dec 11, 2025
- Knowledge cutoff
- Aug 31, 2025
- Context window
- 400,000 tokens
- Max output
- 128,000 tokens
- Inputs
- Text, Images
- Output
- Text
- Reasoning
- Adjustable effort medium · high · xhigh
- Tool calling
- Yes
- Structured output
- No
- Weights
- Proprietary
- API model ID
gpt-5.2-proon OpenAI- Availability
- 8 API providerslisted on models.dev
More from OpenAI
About GPT-5.2 Pro
How much does GPT-5.2 Pro cost?
GPT-5.2 Pro costs $21.00 input / $168.00 output per million tokens (official OpenAI API price). At a 3:1 input-to-output mix that is $57.75 per million tokens, more expensive than 99% of the 360 priced models we track.
What is the context window of GPT-5.2 Pro?
GPT-5.2 Pro accepts up to 400,000 tokens per request and can write up to 128,000 tokens in one response.
How good is GPT-5.2 Pro?
Epoch AI gives GPT-5.2 Pro a Capabilities Index score of 155.4 (likely range 153.0–158.2), ranking it #25 of 148 models Epoch has scored. Epoch AI benchmark results: FrontierMath Tiers 1–3 74.0%.
Is GPT-5.2 Pro open source?
No. GPT-5.2 Pro is proprietary; you use it through OpenAI’s API or partner platforms.
What inputs does GPT-5.2 Pro support?
GPT-5.2 Pro accepts text and images and replies in text. It is a reasoning model with medium, high and xhigh effort settings, supports tool calling.
When was GPT-5.2 Pro released?
OpenAI released GPT-5.2 Pro on Dec 11, 2025. Its training data runs to Aug 31, 2025.
What are the best alternatives to GPT-5.2 Pro?
The closest current models from other labs on capability, price and release date are Claude Opus 4.6 (Anthropic, ECI 155.3, $5.00 / $25.00), Gemini 3.1 Pro Preview (Google, ECI 154.8, $2.00 / $12.00), Kimi K3 (Moonshot AI, ECI 157.6, $3.00 / $15.00) and Qwen3.7 Max (Alibaba (Qwen), ECI 153.7, $2.50 / $7.50).