AI Model Release Tracker - Timeline of Major AI Models from 2022-2026
AI Model Release Tracker
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Anthropic
Models
18
First release
Mar 14 2023
(Claude 1)
Latest release
Feb 17 2026
(Claude Sonnet 4.6)
Active years
4
Best GPQA Diamond
91.3%
(Claude Opus 4.6)
Best SWE-Bench
80.9%
(Claude Opus 4.5)
All Releases
2026
2 releases
Claude Sonnet 4.6
GPQA 89.9%
SWE 79.6%
Feb 17
Claude Opus 4.6
GPQA 91.3%
SWE 80.8%
Feb 5
2025
7 releases
Claude Opus 4.5
GPQA 87%
SWE 80.9%
Nov 24
Claude Haiku 4.5
GPQA 73%
SWE 73.3%
Oct 15
Claude Sonnet 4.5
GPQA 83.4%
SWE 77.2%
Sep 29
Claude Opus 4.1
GPQA 80.9%
SWE 74.5%
Aug 5
Claude Sonnet 4
GPQA 75.4%
SWE 72.7%
May 22
Claude Opus 4
GPQA 79.6%
SWE 72.5%
May 22
Claude 3.7 Sonnet
GPQA 68%
SWE 62.3%
Feb 24
2024
5 releases
Claude 3.5 Haiku
GPQA 41.6%
SWE 40.6%
Oct 22
Claude 3.5 Sonnet
GPQA 59.4%
SWE 33.4%
Jun 20
Claude 3 Haiku
GPQA 33.3%
Mar 4
Claude 3 Sonnet
GPQA 40.4%
Mar 4
Claude 3 Opus
GPQA 50.4%
SWE 33%
Mar 4
2023
4 releases
Claude 2.1
Nov 21
Claude Instant 1.2
Aug 9
Claude 2
Jul 11
Claude 1
Mar 14
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