Timelines

AI model release timelines

Every major model line and vendor as a visual timeline — each version, its release date and how performance has improved over time. Pick a vendor like Anthropic or OpenAI, or a model line like Claude Opus. Built to share.

The frontier: the best-scoring model over time, and how the labs leapfrog each other. Open the frontier →

Latest release

Browse by vendor

Vendor
Anthropic
8 releases · 2024 – 2026 Latest: Claude Fable 5.1 · 53.4
Vendor
Google
8 releases · 2025 – 2026 Latest: Gemini 3.7 Flash · 39.6

Browse by model line

Anthropic
Claude Fable
2 versions · 2026 Latest: Claude Fable 5.1 · 53.4
Google
Gemini Flash
7 versions · 2025 – 2026 Latest: Gemini 3.7 Flash · 39.6
Anthropic
Claude Opus
7 versions · 2024 – 2026 Latest: Claude Opus 5 · 50.7
Anthropic
Claude Sonnet
6 versions · 2024 – 2026 Latest: Claude Sonnet 5 · 38.4
OpenAI
GPT-5
7 versions · 2025 – 2026 Latest: GPT-5.6-sol · 47.1
Google
Gemini Pro
3 versions · 2025 – 2026 Latest: Gemini 3.1 Pro Preview · 30.4
Anthropic
Claude Haiku
3 versions · 2024 – 2025 Latest: Claude Haiku 4.5 · 17.6
OpenAI
GPT-4
3 versions · 2023 – 2025 Latest: GPT-4.1 · 12.7
OpenAI
OpenAI o-series
3 versions · 2024 – 2025 Latest: o4-mini · 16.7