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Anthropic model release history
Every Anthropic model ArtificialWatch has seen go live, newest first: 10 releases. Each date is the day the model went live on a public API as ArtificialWatch verified it, not the day it was announced.
October 2026
- Oct 7, 2026Claude Haiku 5.5$0.10 / $0.50 per 1M tokens · bench index 50.5
September 2026
- Sep 28, 2026Claude Sonnet 5.5frontier · $2 / $10 per 1M tokens · bench index 93.5
- Sep 22, 2026Claude Opus 5.5frontier · $4 / $20 per 1M tokens · bench index 100
- Sep 1, 2026Fable 5.1frontier · $10 / $50 per 1M tokens · bench index 90.7
- Sep 1, 2026Mythos 5.1frontier
July 2026
- Jul 24, 2026Claude Opus 5frontier · $5 / $25 per 1M tokens · bench index 72.8
- Jul 1, 2026Fable 5frontier · $10 / $50 per 1M tokens · bench index 72.1
June 2026
- Jun 30, 2026Claude Sonnet 5frontier · $2 / $10 per 1M tokens · bench index 27.9
- Jun 9, 2026Mythos 5frontier
May 2026
- May 27, 2026Claude Opus 4.8$5 / $25 per 1M tokens · bench index 37.2
Prices and bench index are today's figures, not launch-day ones.
What Anthropic ships next, with live odds: next Claude model. What its models cost: Anthropic API pricing.
Quick answers
When did Anthropic release its latest model?
Claude Haiku 5.5 went live on a public API on October 7, 2026. Dates are the day ArtificialWatch verified the model live, not the day it was announced.
How many models has Anthropic released?
10 that ArtificialWatch has logged as live, the first on May 27, 2026; 5 of them in the last 90 days. Coverage is fullest from July 2026.
What is Anthropic's next model?
ArtificialWatch is watching for 9 unreleased models: Fable 5.2, Fable 5.5, Mythos 5.2, Fable 6 and 5 more. It alerts the moment one answers on a public API.
A badge that updates itself
<a href="https://artificialwatch.com/releases"><img src="https://artificialwatch.com/badge/latest/anthropic.svg" alt="Latest Anthropic model, tracked by ArtificialWatch" height="46"></a>Other labs: Google · Meta · OpenAI · xAI · Alibaba · Ant Group · Inception · MiniMax · NVIDIA · Zhipu AI
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Writing about Anthropic's releases? Copy a link or a citation.
<a href="https://artificialwatch.com/releases/lab/anthropic">Anthropic model release history</a>ArtificialWatch, "Anthropic model release history", https://artificialwatch.com/releases/lab/anthropicAnthropic ships often. Get an alert when its next model lands.
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