GPT-5.2 Codex — Benchmark Scores, Pricing & Performance Analysis
GPT-5.2 Codex is an AI model by Azure. View detailed benchmark scores, pricing data, and performance metrics on Serenities AI Models.
Specifications last checked against the provider on . Benchmark scores carry their own source, linked beside each number.
Coding Benchmarks
Human preference ELO for building things — websites, UI, games, charts, SVG
Design Arena (via OpenRouter)Cost Benchmarks
Cost per 1M cached input tokens — the price that actually applies to a long agent conversation
OpenRouter APIContext Benchmarks
Available from 21 providers
The same model costs different amounts depending on who serves it. You can bring your own key for 3 of these — connect it here.
| Provider | Input / 1M | Output / 1M | Cached in | Context | Your key |
|---|---|---|---|---|---|
| QiHang | $0.14 | $1.14 | — | 400K | — |
| Poe | $1.6 | $13 | $0.16 | 400K | — |
| Abacus | $1.75 | $14 | $0.175 | 400K | — |
| AIHubMix | $1.75 | $14 | $0.175 | 400K | — |
| Azure | $1.75 | $14 | $0.175 | 400K | Supported |
| Azure Cognitive Services | $1.75 | $14 | $0.175 | 400K | — |
| DevPass (LLM Gateway) | $1.75 | $14 | $0.175 | 400K | — |
| Eden AI | $1.75 | $14 | $0.175 | 272K | — |
| Impossibl | $1.75 | $14 | $0.175 | 400K | — |
| Jiekou.AI | $1.75 | $14 | — | 400K | — |
| Kilo Gateway | $1.75 | $14 | $0.175 | 400K | — |
| LLM Gateway | $1.75 | $14 | $0.175 | 400K | — |
| NanoGPT | $1.75 | $14 | $0.175 | 400K | — |
| Ofox | $1.75 | $14 | $0.18 | 400K | — |
| OpenCode Zen | $1.75 | $14 | $0.175 | 400K | — |
| OpenRouter | $1.75 | $14 | $0.175 | 400K | Supported |
| OrcaRouter | $1.75 | $14 | $0.175 | 400K | — |
| Vercel AI Gateway | $1.75 | $14 | $0.175 | 400K | Supported |
| Vivgrid | $1.75 | $14 | $0.175 | 400K | — |
| ZenMux | $1.75 | $14 | $0.17 | 400K | — |
| Venice AI | $2.19 | $17.5 | $0.219 | 256K | — |
GPT-5.2 Codex — Benchmark Scores Overview
Scores normalized to percentage scale for visual comparison. ELO scores mapped to 0-100 range (1100-1500).
GPT-5.2 Codex — Frequently Asked Questions
How much does GPT-5.2 Codex cost?
GPT-5.2 Codex costs $1.8 per 1M input tokens and $14.0 per 1M output tokens. This is mid-range pricing for its capability level.
What is the context window of GPT-5.2 Codex?
GPT-5.2 Codex has a context window of 400K tokens. This determines how much text, conversation history, and code the model can process in a single request.
Who created GPT-5.2 Codex?
GPT-5.2 Codex was created by Azure. It is classified as a mid model in our catalogue.
Is GPT-5.2 Codex open source?
No, GPT-5.2 Codex is a proprietary model. It is available through Azure's API and compatible providers.