Anthropic releases Claude Instant 1.2
Claude Instant 1.2 released via the API — its faster, lower-priced model, now incorporating strengths of Claude 2
Why it matters
Company-reported scores: 58.7% on Codex (Instant 1.1: 52.8%) and 86.7% on GSM8K (80.9%); Anthropic said it hallucinates less and is more resistant to jailbreaks
Source — Primary sources first; secondary reports are labelled “Press”
Officialanthropic.comhttps://www.anthropic.com/news/releasing-claude-instant-1-2Added in Week 41, 2026 · See that week