Claude Haiku 5.5
Fast assistance for frequent tasks
Oct 7, 2026Source reviewed
Models, agents and algorithms changing how software gets made.
Watch for reproducible evaluations, released tools and real deployment results.
Fast assistance for frequent tasks
A new frontier model with restricted access
Near Astra performance at a lower price
Faster everyday coding and documents
Higher capability at lower operating cost
GPT-6 at different cost levels
Native visual understanding
A new generation for complex work
Stronger reasoning in the Flash tier
Stronger research and professional work
Different safeguards for approved researchers
V4 Pro reaches general availability
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