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Anthropic's Claude Sonnet 5.5 nearly matches Opus 5.5 on benchmarks while costing up to 30 percent less per task
Sonnet 5.5
Claude Sonnet 5.0 heads straight down the middle of the road to dodge controversy
Claude Sonnet 5 – benchmark results
Anthropic launches Claude Sonnet 5 as a cheaper way to run agents
Anthropic launches Claude Sonnet 5 at a steep discount to its top model as the company races toward a blockbuster IPO
Claude Sonnet 5
How Sakana trained a 7B model to orchestrate GPT, Claude and Gemini LLMs
$500 GPU outperforms Claude Sonnet on coding benchmarks
Intercom's new post-trained Fin Apex 1.0 beats GPT-5.4 and Claude Sonnet 4.6 at customer service resolutions
Claude Sonnet 4.6 Model Brings 'Much-Improved Coding Skills', Upgraded Free Tier
Claude Sonnet 4.6 Brings Improved Coding, Computer Use, and Office Tasks
Anthropic releases Claude Sonnet 4.6, continuing breakneck pace of AI model releases
Claude Sonnet 4.6 delivers frontier-level AI for free and cheap-seat users
Claude Sonnet 4.6
Claude Sonnet 4.6 System Card
IQuest-Coder: A new open-source code model beats Claude Sonnet 4.5 and GPT 5.1 [pdf]
Moonshot's Kimi K2 Thinking emerges as leading open source AI, outperforming GPT-5, Claude Sonnet 4.5 on key benchmarks
Anthropic Debuts Claude Sonnet 4.5 With Improved Coding
Claude Sonnet 4.5 is Anthropic's safest AI model yet
