The coding-AI timeline

The models and tools we mark on every contribution graph — each links to its official announcement. Plot yours →

Why these — and not every AI model?

This is the exact set of markers we draw on your contribution graph — nothing else. A release earns a spot only if, in its moment, it was one of the best models or tools for writing code (or still is). General-purpose, image, video and audio models sit this one out: they never bent a developer's contribution trend, and that trend is all blameai measures.

ModelCoding tool

'22

Nov 30ChatGPT (GPT-3.5)OpenAI

'23

Mar 14GPT-4OpenAI
Jul 11Claude 2Anthropic
Aug 24Code LlamaMeta
Nov 6GPT-4 TurboOpenAI

'24

Feb 15Gemini 1.5 ProGoogle
Mar 4Claude 3 OpusAnthropic
May 13GPT-4oOpenAI
Jun 17DeepSeek-Coder-V2DeepSeek
Jun 21Claude 3.5 SonnetAnthropic
Nov 12Qwen2.5-CoderAlibaba (Qwen)
Dec 5OpenAI o1OpenAI
Dec 26DeepSeek-V3DeepSeek

'25

Jan 20DeepSeek-R1DeepSeek
Feb 24Claude 3.7 SonnetAnthropic
Feb 24Claude CodeAnthropic
Mar 25Gemini 2.5 ProGoogle
Apr 14GPT-4.1OpenAI
Apr 16OpenAI o3OpenAI
May 14OpenCodeSST
May 16CodexOpenAI
May 22Claude Sonnet 4 / Opus 4Anthropic
Jul 11Kimi K2Moonshot AI
Jul 22Qwen3-CoderAlibaba (Qwen)
Aug 5Claude Opus 4.1Anthropic
Aug 7GPT-5OpenAI
Sep 29Claude Sonnet 4.5Anthropic
Nov 12GPT-5.1OpenAI
Nov 18Gemini 3 ProGoogle
Nov 19GPT-5.1-Codex-MaxOpenAI
Nov 24Claude Opus 4.5Anthropic
Dec 2Pi.devEarendil

'26

Apr 16Claude Opus 4.7Anthropic
Apr 23GPT-5.5OpenAI
May 28Claude Opus 4.8Anthropic
Jun 9Claude Fable 5Anthropic
Jun 30Claude Sonnet 5Anthropic
Jul 9GPT-5.6OpenAI
Jul 24Claude Opus 5Anthropic