GPT-5.2 vs GPT-5.2 Codex
GPT-5.2 and GPT-5.2 Codex are closely matched at 41.9 and 34.6 on the LLM Stats Score. GPT-5.2 and GPT-5.2 Codex cost the same.
OpenAI · OpenAI · Updated for 2026
Which is better?
GPT-5.2 and GPT-5.2 Codex are closely matched on the overall LLM Stats Score at 41.9 and 34.6.
In the 1 individual benchmarks reported for both models, GPT-5.2 wins 1; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT-5.2
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
Choose GPT-5.2 Codex
- you want the most recent training data — it shipped Jan 2026
At a glance
The differences that matter most.
Individual benchmarks
24 reported for GPT-5.2 · 3 for GPT-5.2 Codex
GPT-5.2 outperforms in 1 benchmarks (LiveBench), while GPT-5.2 Codex is better at 0 benchmarks.
GPT-5.2 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GPT-5.2 ($1.75/1M tokens) costs the same as GPT-5.2 Codex ($1.75/1M tokens).
For output processing, GPT-5.2 ($14.00/1M tokens) costs the same as GPT-5.2 Codex ($14.00/1M tokens).
In conclusion, GPT-5.2 and GPT-5.2 Codex cost the same.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Both models have the same input context window of 400,000 tokens. Both models can generate responses up to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-5.2 and GPT-5.2 Codex support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5.2
GPT-5.2 Codex
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
GPT-5.2 was released on 2025-12-11, while GPT-5.2 Codex was released on 2026-01-14.
GPT-5.2 Codex is 1 month newer than GPT-5.2.
Dec 11, 2025
8 months ago
Jan 14, 2026
7 months ago
1mo newerKnowledge Cutoff
When training data ends
GPT-5.2 has a documented knowledge cutoff of 2025-08-25, while GPT-5.2 Codex's cutoff date is not specified.
We can confirm GPT-5.2's training data extends to 2025-08-25, but cannot make a direct comparison without GPT-5.2 Codex's cutoff date.
Aug 2025
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Provider Availability
GPT-5.2 is available from OpenAI. GPT-5.2 Codex is available from OpenAI.
GPT-5.2
GPT-5.2 Codex
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5.2 and GPT-5.2 Codex side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5.2 vs GPT-5.2 Codex.