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Model Timeline

Timeline of gpt-5.3-codex

Every recorded change for this model by OpenAI, newest first. Back to the entity page →

10 events

Year

All years 2026

Category · events in the last 365 days

All categories Benchmarks4,947 Models2,335 Companies1,601 Research1,104 Releases1,019 Providers & pricing640 Datasets146 Frameworks136 Hardware43 Pricing14 Repositories10

Filtered to one entity. Show the whole atlas

Sept 202610

Sept 2026 10

11 Sept 2026
Benchmark resultModelgpt-5.3-codexOpenAI
gpt-5.3-codex scores 53.03% on Terminal-Bench
artificial_analysis
artificialanalysis.ai

11 Sept 2026

Benchmark resultModelgpt-5.3-codexOpenAI

gpt-5.3-codex scores 85.96% on τ²-bench

artificial_analysis

artificialanalysis.ai

11 Sept 2026

Benchmark resultModelgpt-5.3-codexOpenAI

gpt-5.3-codex scores 78.5% on MMMU-Pro

artificial_analysis

artificialanalysis.ai

11 Sept 2026

Benchmark resultModelgpt-5.3-codexOpenAI

gpt-5.3-codex scores 75.37% on IFBench

artificial_analysis

artificialanalysis.ai

11 Sept 2026

Benchmark resultModelgpt-5.3-codexOpenAI

gpt-5.3-codex scores 42.49% on Humanity's Last Exam

artificial_analysis

artificialanalysis.ai

11 Sept 2026

Benchmark resultModelgpt-5.3-codexOpenAI

gpt-5.3-codex scores 91.52% on GPQA

artificial_analysis

artificialanalysis.ai

11 Sept 2026

Benchmark resultModelgpt-5.3-codexOpenAI

gpt-5.3-codex scores 32.5 on Artificial Analysis Intelligence Index

artificial_analysis

artificialanalysis.ai

11 Sept 2026

Listed by providerModelgpt-5.3-codexOpenAI

OpenAI API lists gpt-5.3-codex at $1.75 in / $14 out per 1M tokens

openrouter

openrouter.ai

11 Sept 2026

New modelModelgpt-5.3-codexOpenAI

New model: gpt-5.3-codex (OpenAI)

openai

developers.openai.com

11 Sept 2026

Listed by providerModelgpt-5.3-codexOpenAI

OpenAI API lists gpt-5.3-codex at $1.75 in / $14 out per 1M tokens

openai

developers.openai.com

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