Model profile
GPT 5.2 Codex
OpenAIdeveloper
#73 / 267overall rank
3eval lineages
Evidence summary
GPT 5.2 Codex has an estimated overall rank of #73; its 90% source-sensitivity interval is #25–#200. Its behavior-only rank is #86; company governance moves the combined estimate to #73. Published evidence spans 3 evals and 3 of 7 behavior components. Its strongest relative result is AA-Omniscience (hallucination_rate, #106 of 311); its weakest is OpenAI GPT-5.4 Property Preservation (destructive_action_avoidance, #3 of 3).
Compare this model
Only models sharing at least one published sub-eval are listed.
Official and reference links
- Artificial Analysis ↗gpt-5-2-codex
- OpenRouter ↗openai/gpt-5.2-codex
- Official model documentation ↗Family-level model document · openai · first party
Published eval results
Rank is within that sub-eval. Black marks the observed result; the grey dot marks the value implied by the global rank. Values stay on each source’s native scale.
| Eval / sub-eval | Rank | Value | Distribution | Better | Source |
|---|---|---|---|---|---|
| AA-Omnisciencehallucination_rate | #106 / 311 | 0.7282 | ↓ lower | Source ↗official | |
| BullshitBench v2clear_pushback_rate | #36 / 105 | 0.4033 | ↑ higher | Source ↗official | |
| OpenAI GPT-5.4 Property Preservationdestructive_action_avoidance | #3 / 3 | 0.76 | ↑ higher | Source ↗official | |
| OpenAI GPT-5.4 Property Preservationuser_work_preserved | #2 / 3 | 0.18 | ↑ higher | Source ↗official |