Claude 4.5 Sonnet
anthropic/claude-4.5-sonnet- Anthropic
- Family · Claude 4 Sonnet
- Released 29 Sep 2025
Not on OSMEXO yet
Scores · standing
Intelligence20.7#134/490
Coding52.1#63/196
News & trends
News · latest from Anthropic
- Claude Opus 5.5 Can Draw Permit-Level Architectural Drawingsstephenjgallagher.substack.com · 2 Nov
- GPT-6.1 Terra vs. Claude Opus 5.5: Cheaper and faster in three tests at maxthenewstack.io · 2 Nov
- Claude Opus 5.5 and Claude Sonnet 5.5 are now available in Google AntigravityGoogle Cloud · 20 Oct
- GLM-5.3 vs. Claude Fable 5 on DeepSWE: Cost, Coding, and RoutingTogether AI · 21 Aug
Benchmarks
bar = share of the top score · Benchmark data: Artificial AnalysisFamily progress
Intelligence Index
- Family releases20.7
Research papers
- CARLAR Influence: A Structured Hallucination Risk in Multimodal Cheque Extraction and an Exploratory Compressed-Image Countermeasure19 Oct
- KernelZero: Co-Evolving Proposer and Coder for Continuously Improved GPU Kernel Generation27 Sep
- Chain-of-Experience for Continual LLM Improvement18 Aug
- KLong: Training LLM Agent for Extremely Long-horizon Tasks19 Feb
- Market-Bench: Evaluating Large Language Models on Introductory Quantitative Trading and Market Dynamics13 Dec
Same family
Claude 4 Sonnet- 18.9
Alternatives
other vendors · similar capability- 25.3
- U24.1
- 21.8
- T25.0
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