GPT-6.1 Sol released ↗
OpenAI · Source ↗
THE HISTORICAL RECORD
Frontier
timeline.
Dated releases and milestones with direct provenance. Filters never merge incompatible benchmark scores.
Claude Sonnet 5.5 released ↗
Anthropic · Source ↗
Claude Opus 5.5 released ↗
Anthropic · Source ↗
GPT-6 Sol and Luna added to the API ↗
OpenAI · Source ↗
DeepSeek V4.1 Flash released ↗
DeepSeek · Source ↗
GPT-6 Astra released ↗
OpenAI · Source ↗
Gemini 3.8 Flash released ↗
Google · Source ↗
Claude Fable 5.1 released ↗
Anthropic · Source ↗
DeepSeek V4 Pro released ↗
DeepSeek · Source ↗
Gemini 3.7 Flash released ↗
Google · Source ↗
Grok 4.6 released with published agent evaluations ↗
xAI · Source ↗
Gemini 3.5 Flash-Lite released ↗
Google · Source ↗
Gemini 3.6 Flash released ↗
Google · Source ↗
GPT-5.6 Luna released ↗
OpenAI · Source ↗
GPT-5.6 Sol released ↗
OpenAI · Source ↗
GPT-5.6 Terra released ↗
OpenAI · Source ↗
Gemini 3.5 Flash released ↗
Google · Source ↗
IBM reports Heron r3 performance ↗
Verified source · Source ↗
Mistral Medium 3.5 released ↗
Mistral · Source ↗
Mistral Small 4 released ↗
Mistral · Source ↗
Apple announces M5 Max ↗
Verified source · Source ↗
M5 Max released ↗
Apple · Source ↗
Gemini 3.1 Pro Preview released ↗
Google · Source ↗
Mistral Large 3 released ↗
Mistral · Source ↗
Claude Haiku 4.5 released ↗
Anthropic · Source ↗
Llama 4 Maverick released ↗
Meta · Source ↗
Llama 4 Scout released ↗
Meta · Source ↗
Radeon RX 9070 XT released ↗
AMD · Source ↗
GeForce RTX 5090 released ↗
NVIDIA · Source ↗
Willow: Google announced below-threshold error-correction results on Willow. ↗
google-quantum-ai · Source ↗