Claude Sonnet 4.5
PulseAugur coverage of Claude Sonnet 4.5 — every cluster mentioning Claude Sonnet 4.5 across labs, papers, and developer communities, ranked by signal.
- developed by .anthropic 100%
- used by Claude API 90%
- instance of Claude API 90%
- instance of Claude Opus-5 90%
- instance of Claude Fable-5 90%
- instance of Claude Opus 4.1 90%
- affiliated with Claude API 70%
- competes with alphaXiv 70%
- competes with Gotit.pub 70%
- competes with ScienceCast 70%
- competes with DeepSeek-R1 70%
- competes with Opus 4.8 70%
- 2026-10-13 product_launch Anthropic's Claude Sonnet 4.5 model is scheduled for deprecation and removal from the Claude API. source
- 2026-10-09 product_launch Anthropic is deprecating the Claude Sonnet 4.5 model, with retirement scheduled for November 30, 2026. source
- 2026-09-13 product_launch Anthropic released Claude Sonnet 4.5 with new memory tools for developers. source
- 2026-09-05 product_launch Anthropic released Claude Sonnet 4.5 with a 200K token context window and extended thinking mode. source
- 2026-06-08 product_launch A startup encountered critical API system failures after upgrading to Claude Sonnet 4.5. source
- 2026-05-26 product_launch Anthropic removed the Claude Sonnet 4.5 model from its claude.ai interface. source
- 2026-05-25 research_milestone Claude Sonnet 4.5 outperformed GPT-4.1 and Gemini 2.5 Pro in a real-world coding benchmark. source
- 2026-05-15 product_launch Anthropic is decommissioning the Sonnet 4.5 model. source
- 2026-05-12 product_launch Claude Sonnet 4.5 is being retired from the claude.ai model selector.
14 day(s) with sentiment data
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Gemini 2.5 Flash beats Claude Sonnet 4.5 on Oracle Text-to-SQL benchmark
A new benchmark called UniQL, designed to translate natural language questions into SQL queries across various dialects, has highlighted the performance differences between large language models. On the Oracle dialect o…
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Anthropic's Claude Opus 4.7 agents exhibit emergent play and improved skills after free exploration
Researchers at MIT have demonstrated that Anthropic's Claude Opus 4.7 agents, when given 30 hours of unstructured exploration time on a virtual island, developed emergent behaviors such as inventing games, drawing, and …
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New AOI Framework Trains LLM Agents for Autonomous Cloud Diagnosis
Researchers have developed AOI (Autonomous Operations Intelligence), a new framework designed to train LLM agents for Site Reliability Engineering (SRE) tasks. AOI addresses challenges like data privacy and safe action …
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LLMs diverge from human goal selection in self-directed learning tasks
A new study published on arXiv reveals that large language models (LLMs) do not accurately reflect human preferences when selecting goals in a self-directed learning task. Researchers found significant divergence betwee…
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Anthropic's Claude Sonnet 4.6 matches Opus performance at lower cost
Anthropic has released Claude Sonnet 4.6, maintaining the same pricing as its predecessor while offering performance comparable to Opus models. This new version introduces significant cost-saving features, including pro…
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Tsinghua University releases PilotDeck 2.0 for AI agents, cutting costs by 83%
Tsinghua University's THUNLP lab, in collaboration with OpenBMB and others, has released PilotDeck 2.0, an open-source operating system for AI agents. This system addresses key challenges in agent performance, including…
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Schemagate outperforms new Text-to-SQL access control benchmark
A new benchmark for Text-to-SQL systems, released by a SIGMOD'27 paper, reveals that simply hiding restricted columns still allows models to answer questions they should refuse. The benchmark, named BIRD, showed that mo…
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TokenRouter gateway unifies access to Codex and Claude Code
TokenRouter has released a new gateway solution designed to streamline the use of multiple AI coding agents, such as OpenAI's Codex and Anthropic's Claude Code. This gateway allows teams to manage access, set budgets, a…
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LiteLLM Router adds fallback and retry logic for LLM providers
LiteLLM has introduced a new Router feature designed to enhance application reliability by abstracting away direct provider integrations. This tool allows developers to maintain a single OpenAI-compatible interface whil…
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Claude Sonnet 4.5 integration with PHP 8.4 discussed
A software development team is implementing a port for the Claude Sonnet 4.5 LLM within their PHP 8.4 application. This architectural approach aims to streamline the integration of AI capabilities by using a single inte…
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Anthropic's Claude Sonnet 4.5 to be retired November 30, 2026
Anthropic's Claude Sonnet 4.5 model is scheduled for deprecation and will be removed from the Claude API on November 30, 2026. This change affects users across various platforms, including Amazon Bedrock and Google Clou…
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Anthropic model deprecation strategy for developers
This post advises developers on how to manage Anthropic model deprecations by establishing a robust changelog habit. It suggests centralizing model name mappings within code to roles rather than specific model identifie…
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Cursor IDE's model usage policy frustrates users
A user of the Cursor IDE is expressing frustration with the platform's model usage policy. They report that the "computer use" feature, which is intended for general tasks, defaults to using Sonnet 4.5 models and consum…
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Anthropic retires Claude Sonnet 4.5 model on Nov 30, 2026
Anthropic has announced the deprecation of its Claude Sonnet 4.5 model, with the specific ID claude-sonnet-4-5-20250929 scheduled for retirement on November 30, 2026. Developers are advised to migrate to the recommended…
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LLM routers cause silent quality collapse, eroding user trust over 6 weeks
LLM routers, while offering significant cost savings, can lead to a silent collapse in response quality that goes undetected for weeks. This degradation, often caused by miscalibrated classifiers or semantic drift in ch…
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AWS sample teaches LLMs to learn from corrections, cutting costs
A new open-source sample from AWS demonstrates a method for improving LLM document extraction by learning from human corrections. This approach stores corrections as durable memory, allowing them to be reused and preven…
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Frontier LLMs fail to recall post-2024 facts in new benchmark
A new benchmark, "Post-Cutoff Knowledge 150," has been developed to test the parametric knowledge of frontier LLMs regarding events occurring after their training data cutoff. The benchmark, consisting of 150 factual qu…
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New method tracks prompt injection across five LLMs, revealing varied defenses
A new research paper introduces "Kill-Chain Canaries," a method for tracking prompt injection attacks across different stages and LLMs. The study tested five production LLMs, including Claude Haiku 4.5, Claude Sonnet 4.…
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Lightweight LLMs outperform flagships in false-premise test; Gemini falters on hypotheticals
A new benchmark designed to test Large Language Models' ability to identify and flag false premises in user queries revealed surprising results. Lightweight models like Gemini 2.5 Flash and Claude Haiku 4.5 achieved per…
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Access Claude AI Free Without Login via Third-Party Services
As of September 2026, accessing Anthropic's Claude models without an account is possible through third-party services, as the official claude.ai requires registration. Duck.ai, integrated with DuckDuckGo, offers privacy…