Automated page. Written and translated automatically by AI and checked against the sources by software; no human editor. SI-IQ is an index built from public benchmark results, not an IQ test. How it works
How smart is GPT-5.2?
GPT-5.2 is a model from OpenAI, released on Dec 11, 2025. Its SI-IQ is 125 (90% interval 122–128), estimated from 10 benchmark results by 3 independent evaluators. Its strongest area is Math and its weakest is Agents.
Facts
- Developer
- OpenAI
- Released
- Dec 11, 2025
- Access
- API access
- Benchmarks used
- 10 results from 3 evaluators
- API price
- $1.75 input / $14 output per 1M tokens (developer's price list, Oct 18, 2026)
- Context window
- 272,000 tokens
Ability by area (SI-IQ, 90% interval)
Every benchmark result we used
Each score is one value exactly as the source published it: for Epoch AI the best of its run settings, for OpenRouter the median hosting provider (the developer's own hosting when it ran the test). “Implied SI-IQ” is the ability that this single result points to; the overall SI-IQ is their precision-weighted average.
Human preference (Arena)
On the Arena leaderboard, where people vote between two anonymous answers, GPT-5.2 has a rating of 1,435 (1,432–1,439) from 83,855 votes (published Oct 15, 2026). Human preference is a different measure from benchmark ability and is not part of SI-IQ. Arena (Hugging Face)
Models with similar SI-IQ
| Model | SI-IQ | |
|---|---|---|
| Qwen3.7-MaxAlibaba | 125 | GPT-5.2 vs Qwen3.7-Max |
| GLM-5.3Z.ai (Zhipu AI) | 125 | GPT-5.2 vs GLM-5.3 |
| Gemini 3.6 FlashGoogle DeepMind | 125 | GPT-5.2 vs Gemini 3.6 Flash |
| Claude Sonnet 5Anthropic | 126 | GPT-5.2 vs Claude Sonnet 5 |
| Grok 4.6xAI | 126 | GPT-5.2 vs Grok 4.6 |
Computed with SI-IQ method version 1.0.0. Read the full methodology
Data sources: Arena leaderboard dataset on Hugging Face (CC BY 4.0); Berkeley Function Calling Leaderboard, Gorilla project (Apache-2.0); Epoch AI, ‘Capabilities & benchmarking’ (CC BY 4.0); API list prices via LiteLLM's price table (MIT); each price links to the developer's pricing page; Source: OpenRouter (openrouter.ai), licensed under CC BY 4.0: reuse and republish with attribution to OpenRouter..