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Model Timeline

Timeline of gpt-4.1-nano

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

3 events

Year

All years 2026

Category · events in the last 365 days

All categories Benchmarks4,947 Models2,332 Companies1,601 Research1,104 Releases1,019 Providers & pricing640 Datasets146 Frameworks136 Hardware43 Repositories10 Pricing6

Filtered to one entity. Show the whole atlas

Sept 20263

Sept 2026 3

12 Sept 2026
Context window changedModelgpt-4.1-nanoOpenAI
gpt-4.1-nano: context length changed from 1000000 to 1047576
Context window1M tokens→1.05M tokensopenrouter

openrouter.ai

11 Sept 2026

Context window changedModelgpt-4.1-nanoOpenAI

gpt-4.1-nano: context length changed from 1047576 to 1000000

Context window1.05M tokens→1M tokensartificial_analysis

artificialanalysis.ai

11 Sept 2026

New modelModelgpt-4.1-nanoOpenAI

New model: gpt-4.1-nano (OpenAI)

openai

developers.openai.com

Showing up to 400 events. Narrow by year or category, or use the changes feed for cursor-paged history. Times are UTC.