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Type: AI model

Claude Sonnet 4.5 is the mid-tier model of Anthropic’s Claude 4.5 generation, balancing speed and capability for developer and everyday workloads. It preceded Sonnet 4.6. GROUNDING tracks Claude Sonnet 4.5’s capabilities, benchmarks, and developer adoption.

Recent Updates

  • 2026-07-01: Paper on artificial swarm intelligence in large language models (cs.AI updates on arXiv.org) · arxiv.orgLLM Evals OpenAI · Google · Anthropic · GPT-5 · Gemini 2.5 Pro
  • 2026-07-03: Distributed attacks in persistent-state AI control for coding agents (cs.AI updates on arXiv.org) · arxiv.orgAgents Code Agents LLM Evals GPT-4o · Gemini 3.1 Pro · kimi-k2.5
  • 2026-07-07: Anthropic maps a hidden internal workspace inside Claude (量子位) · qbitai.comContext Engineering LLM Evals Anthropic · 量子位 · QbitAI 克雷西 · Claude · Opus 4.6
  • 2026-07-09: Co-LMLM proposes continuous-query limited-memory language models with external factual knowledge (cs.CL updates on arXiv.org) · arxiv.orgRAG gpt-4o-mini
  • 2026-07-11: ChatGPT Search and Yandex Neurosearch Cite Mostly Different Source Domains (Все статьи подряд / Искусственный интеллект / Хабр) · habr.comOpenAI · Yandex · Google · Anthropic · Perplexity gpt-4o-search-preview sonar-pro · Gemini 2.5 Flash search-api-gen
  • 2026-07-15: Comparing Claude Sonnet generations against Russian mid-tier LLMs: benchmark across coding, long context, and reliability (Все статьи подряд / Искусственный интеллект / Хабр) · habr.comLLM Evals Anthropic · Sber · Yandex · BotHub · OpenAI · Google · Claude Sonnet 5 · Claude Sonnet 4.6 GigaChat 2 MAX YandexGPT Pro 5.1 · Claude Fable 5 · GPT 5.5 · GPT-5.5 Pro · Gemini-3.1-Pro · Claude Opus 4.8 · Claude Opus 4.7 Alice AI

FAQ

What is Claude Sonnet 4.5?

Claude Sonnet 4.5 is the mid-tier model of Anthropic’s Claude 4.5 generation, balancing speed and capability for developer and everyday workloads. It preceded Sonnet 4.6. GROUNDING tracks Claude Sonnet 4.5’s capabilities, benchmarks, and developer adoption.

What does this page track?

Dated radar mentions, source links, related concepts, and builder-relevant context for Claude Sonnet 4.5, collected automatically by GROUNDING.

When was Claude Sonnet 4.5 last mentioned?

Claude Sonnet 4.5 was most recently mentioned in a radar update dated 2026-07-15.