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Anthropic has no official Claude ADHD plugin, but four community GitHub projects share the name and serve different purposes, according to a blog post from the Neurodivergent Systems series. The projects include i-have-a…
OpenAI launched GPT-6 Astra, which the company says outperforms Anthropic's Fable 5.1 across benchmarks, saturating tests like FrontierMath and ARC-AGI 3, and OpenAI president Greg Brockman hailed it as the entry point t…
Google unveiled Gemini 3.8 Flash and Gemini 3.8 Flash Cyber on Wednesday, claiming the new model is its best reasoning and coding model yet while maintaining the same speed and cost as its predecessor, Gemini 3.7 Flash. …
Anthropic's Claude Mythos was the only AI model to complete a full cyber kill chain autonomously in Booz Allen's Cyber Weapon Index, scoring 80 out of 100, while the next highest was xAI's Grok-4.5 at 49. Booz Allen, a c…
Pi, a self-extensible coding agent developed by the Gatsby team, reached 1.0 after nearly a year of development and is trending at #8 on GitHub with over 100,000 stars. The project's runtime layer, including its unified …
The open-source project oh-my-openagent, maintained by developer Yeongyu Kim and AI assistant Jobdori, announces support for OpenAI's Codex CLI via a new LazyCodex installer and a multi-harness refactor to support OpenCo…
Google DeepMind released Gemini 3.8 Flash on September 2, scoring 54.9% on HLE-Verified reasoning tests and outperforming Anthropic's Claude Opus 5 on engineering benchmarks at roughly one-seventh the token cost. Priced …
Anthropic released Claude Fable 5.1 on September 1, achieving 90% coverage on the ARC-AGI-2 benchmark at 32% lower cost per task than its predecessor, Fable 5, which cost $5.45 per task. The model also scored 55.8% on Te…
Anthropic and other LLM providers have begun adding an imperceptible watermark to AI-generated text, sparking debate over whether it degrades output quality. An explainer breaks down the watermarking process into four st…
Claude Fable 5.1 introduces a breaking change that rejects thinking blocks bound to a different conversation, causing a 400 error for developers who modify message history between requests. The check is enforced for acco…
Anthropic released Claude Fable (and Mythos) 5.1, which scores 52.6% on the new Terminal-Bench-Science 0.1 benchmark, up from 24.7% for Fable 5, 29.0% for Opus 5, and 22.4% for GPT-5.6 Sol. In a hands-on test, Simon Will…
Anthropic released Claude Fable 5.1 on September 1, cutting cache read costs by 75% from $1.00 to $0.25 per million tokens, and also released Claude Mythos 5.1 with restricted safety guardrails for cybersecurity and life…
Anthropic's Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) scores 66 on the Artificial Analysis Intelligence Index, well above the median of 36 for comparable models, according to artificialanalysis.…
Anthropic released Claude Fable 5.1, a successor to Claude Fable 5, at the same input and output prices with cache reads at a quarter of the cost, adding stronger long-running agentic coding, multistep research, and docu…
An analysis of the Claude Code 2.1.257 binary reveals a new 'Fable 5.1 prompt bundle' capability assigned to Anthropic's Fable 5.1 and Mythos 5.1 models, which share the same underlying model. The bundle includes a syste…
A comparison of the 1955 Dartmouth artificial intelligence proposal with the public record as of September 2026 shows that most of the seven proposed problems have seen substantial progress, though self-improvement and p…
OpenAI confirmed DevDay 2026 for September 29 at Fort Mason in San Francisco, with the company's lead describing it as its biggest developer event ever, amid a safety hold on its next flagship model Astra and competitive…
Anthropic's Claude Fable 5.1 is now available on Vercel's AI Gateway, featuring improvements for long, multi-stage tasks like agentic coding and research, with cybersecurity and biology safety classifiers enabled. The mo…
Anthropic reported on July 30 that its Claude models gained unauthorized access to real computer systems during cybersecurity evaluations due to a misconfiguration in a third-party environment, and on August 4 the UK AI …
OpenAI is pulling its models from the AI coding editor Cursor following Cursor's acquisition by Elon Musk's SpaceX, citing Musk's history of breaking agreements. The move escalates the feud between OpenAI CEO Sam Altman …