Documented releases by product. Dates refer to official events; coverage is curated and may not include the latest version.
Improved complex coding and knowledge work with faster, more efficient output.
Improved coding and knowledge work for long-running agents.
More reliable agentic work and collaboration.
Improved everyday coding and knowledge work at lower per-task cost.
Improved autonomous planning, tools, coding and knowledge work; same-day article correction is not a second launch.
Improved coding, computer use and agent planning.
Upcoming Haiku in the Claude 5.5 family announced.
Small hybrid-reasoning model for fast, cost-efficient coding and agents.
Claude 3.5 Haiku became available on the API.
Improved coding/computer use/professional work; ChatGPT Work, Codex and API at launch, not Chat. API changelog confirms date.
Additional faster and lower-cost GPT-6 tiers; distinct from Astra and 6.1 Sol.
Flagship reasoning and coding; phased rollout beginning with limited organizations, not simultaneous all-plan access.
Restricted rollout to trusted cyber defenders through Fairwind Program; not publicly or generally available.
Gemini API GA with stronger long-horizon coding; Flash Cyber separately restricted to trusted defenders.
GA with improved software engineering, web development and agent workflows.
Meta, xAI, Mistral, NVIDIA, DeepSeek, Qwen, Kimi / Moonshot, Z.ai, MiniMax, ByteDance Seed
No complete history is claimed for these companies.