Claims and evidence
- Released Primary source[1]
- Deprecated Primary source[2]2024-09-04: Claude 1 and Instant models
- Retired Primary source[2]2024-09-04: Claude 1 and Instant models [3]November 6th, 2024
- Status Retired Primary source[2]2024-09-04: Claude 1 and Instant models
- Successor of Claude Instant Primary source[1]third paragraph
- Change · Other Anthropic reports gains over Claude Instant 1.1 in maths, coding and reasoning.Compared with Claude Instant Primary source[1]
- Change · Other Gives longer, more structured responses and follows formatting instructions more closely, according to Anthropic, with better quote extraction and question answering.Compared with Claude Instant Primary source[1]
- Change · Languages Anthropic reports improved multilingual capabilities, without naming languages or figures.Compared with Claude Instant Primary source[1]
- Change · Safety Hallucinates less and resists jailbreaks better, according to Anthropic's automated red-teaming evaluation.Compared with Claude Instant Primary source[1]
- Parameters Not disclosedNot disclosed by Anthropic. No claim madeNo source
- Access API Primary source[1]
Lineage
Predecessors
- Claude Instant · 14 March 2023
Successors
- Claude 3 Haiku · 13 March 2024
Based on
Not derived from another model.
Variants and derived
None recorded.
Siblings
None recorded.
All ancestors
- Claude Instant · 14 March 2023
All descendants
- Claude 3 Haiku · 13 March 2024
- Claude 3.5 Haiku · 4 November 2024
- Claude Haiku 4.5 · 15 October 2025
Variants
No variants recorded in this record.
Related AI Radar coverage
AI Radar coverage starts in June 2026; no coverage linked yet.