Is GPT-5.3 Codex SOTA? No

Q: Is GPT-5.3 Codex state of the art?

No. Best recorded rank is #15 in Coding. As of Oct 13, 2026, GPT-5.3 Codex from OpenAI. Best recorded rank is #15 in Coding. Last listed at #15 in Coding on 2026-02-05.

isitsota / models / OpenAI / gpt-5-3-codex

VERIFIEDOct 132026

Is GPT-5.3 Codex state of the art?

No.Best recorded rank is #15 in Coding.

As of Oct 13, 2026, GPT-5.3 Codex from OpenAI. Best recorded rank is #15 in Coding. Last listed at #15 in Coding on 2026-02-05.

Computed automaticallyas of Oct 13, 2026methodology v1.0confidence: low

CodingNot SOTA · #15#15 · 0d

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Why

The ruling, in plain English

Last listed at #15 in Coding on 2026-02-05.

Receipts

Evidence

Scores come from the latest ingested snapshot

Source	Score	Date	Type	Receipt
SWE-bench Verified gpt-5.3-codex_high · high	0.7479338842975206 0.7–0.8	2026-02-05	INDEP.	snap_e03cddec1fbb

Reign history

Where it sits in the succession

Full timeline →

No closed or open crown interval includes this model.

Honest about the gaps

Where it is not the crown

Category	This model	Why
Coding	Not SOTA · #15	Last listed at #15 in Coding on 2026-02-05.