A
Claude Sonnet 4.5
Model Release
Anthropic
Claude Sonnet 4.5 launched by Anthropic. Anthropic's balanced Sonnet 4.5 for production coding and agent workflows.
AI Release Timeline
Track model launches, capability updates, pricing changes, and benchmark milestones across the AI industry.
2026
A
Claude Opus 4.1
Model Release
Anthropic
Claude Opus 4.1 launched by Anthropic. Anthropic's latest Opus-class model for deep reasoning, coding, and long-form analysis.
2025
A
Claude 4 Sonnet
Model Release
Anthropic
Claude 4 Sonnet launched by Anthropic. Latest Sonnet with improved reasoning and tool use.
A
Claude 4 Opus
Model Release
Anthropic
Claude 4 Opus launched by Anthropic. Anthropic flagship for the most demanding tasks.
A
Claude 4 Haiku
Model Release
Anthropic
Claude 4 Haiku launched by Anthropic. Next-gen Haiku with Claude 4 intelligence at low cost.
A
Claude 3.7 Sonnet
Model Release
Anthropic
Claude 3.7 Sonnet launched by Anthropic. Sonnet with extended thinking for harder problems.
2024
A
Claude 3.5 Haiku
Model Release
Anthropic
Claude 3.5 Haiku launched by Anthropic. Fast and affordable Claude for high-throughput workloads.
A
Claude 3.5 Sonnet
Model Release
Anthropic
Claude 3.5 Sonnet launched by Anthropic. Balanced Claude model excelling at coding and analysis.
A
Claude 3 Opus
Model Release
Anthropic
Claude 3 Opus launched by Anthropic. Previous-gen Opus still strong for writing-heavy workloads.