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Radar · Claude Sonnet 5.5 | Sensif.ai

Radar · Entity

Claude Sonnet 5.5

Everything the desk has tracked for this model.

Model

Model releases

Claude Sonnet 5.5 5.5

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Anthropic

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Recent source items

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Anthropic's mid-tier Claude climbs the rankingsdate unverified
[AINews] Claude Haiku 5.5 — better than GPT-6 Luna at the same pricingOct 8, 2026
Expanding the Cyber Verification ProgramOct 6, 2026
The biggest news from OpenAI’s Dev Day: Pay attention to Claude Sonnet 5.5’s effort settingsSep 30, 2026
Claude Sonnet 5.5 nears Opus ahead of OpenAI’s DevDaySep 29, 2026
Anthropic Releases Claude Sonnet 5.5: 70.6% on Terminal-Bench 4.0 at the Same $2/$10 PriceSep 29, 2026
[AINews] AMD buys World Labs for $8.2B, as Atlas solves sparse reconstruction problem for robotics, design and moreSep 29, 2026
llm-anthropic 0.30Sep 28, 2026
Claude Sonnet 5.5Sep 28, 2026
Claude 5.5’s first model has landed: GPT-6 Sol and GPT-6 Luna arrive on the same day as OpusSep 23, 2026
Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price warSep 22, 2026