Anthropic's Claude Opus 5.5, running in Adaptive Reasoning Max Effort mode, scored 58 on the Artificial Analysis Intelligence Index against a median of 25 among comparable models. The model handles text and image input with text output and a 1M token context window, but is priced at $4.00 per 1M input tokens and $20.00 per 1M output tokens, both above the reported medians of $2.00 and $10.00. Evaluating it on the Intelligence Index generated 260M tokens and cost $8,708.20 in total.
Anthropic has released Claude Opus 5.5, an upgrade to its top-tier Opus model that arrives roughly two months after the previous version, in line with the company's usual release pace. The company says it performs close to its higher-end Fable/Mythos tier while being about 30% faster and 40% cheaper per task than Opus 5, with notable gains in large-scale coding work and software optimization tasks.
Anthropic released Opus 5.5, claiming it beats its larger Fable model on many coding and knowledge benchmarks while costing 20% less per output token and running faster. The model also communicates more plainly, avoiding jargon and leading with key information. Sonnet 5.5 and Haiku 5.5 are expected to follow in coming weeks with similar gains.
Anthropic released Claude Opus 5.5 less than two months after Opus 5, claiming performance near its top-tier Fable 5.1 model while running about 40% cheaper. The company says the model uses fewer tokens, produces less verbose answers without sacrificing accuracy, and generates output over 30% faster than its predecessor. Sonnet 5.5 and Haiku 5.5 versions are expected in coming weeks.
Anthropic released Claude Opus 5.5, the first entry in its 5.5 model family, matching the performance of Claude Fable 5.1 on most tasks while running 40% cheaper than its predecessor, Opus 5. The model underwent external evaluation by groups including Frontier Design and METR, and scored higher than any prior Anthropic model on the company's internal automated behavioral audit for alignment and safety.
A developer tested whether repeatedly asking modern agentic LLMs to improve code could yield genuine performance gains, this time using Rust rather than Python. After months of experimentation following the release of Opus 4.5, the author found that these models can produce Rust code significantly faster than current state-of-the-art implementations, provided they are given proper constraints and guardrails.
TechCrunch has outlined five sessions at its 2026 Disrupt conference focused on AI safety and security, spanning the AI Stage and Real World AI Stage. Topics include enterprise deployment of Claude, agent security risks, and other trust-related challenges facing founders building autonomous systems, robots, and AI agents. Anthropic's Head of Applied AI, Cat de Jong, is among the speakers set to discuss what separates successful AI deployments from stalled pilots.
Dave Plummer, who originally wrote Windows Task Manager, has released TMOG, a system and process monitoring tool for macOS, Linux and Windows. He built it in under six weeks with two collaborators using Claude Code to accelerate development, and it's sold outside the App Store due to Apple's sandboxing restrictions on process management. A free version is available indefinitely, while a $39.95 Pro tier adds a record-and-replay feature called Flight Recorder for diagnosing past slowdowns.
Anthropic introduced Claude Opus 5.5, a cheaper, more efficient model that reroutes risky cybersecurity requests to the weaker Opus 4.8 and flagged biology queries to Opus 5. The company says it is the top performer on its internal alignment testing and was vetted by outside evaluators Frontier Design and METR before release.
Xiaomi has released MiMo-V2.6 Pro and a lighter Flash variant as open-weight omnimodal AI models handling text, images, video and code. The company says Pro tops open-source rankings on the Artificial Analysis Intelligence Index, trailing only closed models like Claude Opus 5 and GPT-5.6 Sol, and it showcased a feature called Vibe World that turns prompts into interactive 3D games, Blender assets or robotic arm controls.
Moxie Marlinspike, the developer behind the encrypted messaging app Signal, has released a new AI chatbot called Confer that uses cryptographic techniques to keep user conversations private. The launch responds to growing concern that mainstream AI tools like ChatGPT, Claude, and Gemini collect and store deeply personal user data with few restrictions on how it can be shared, sold, or subpoenaed.
An anonymous software engineer posting on X as 'voxium' says his employer now uses Anthropic's Claude Code to generate specs, tests, tickets and reports, leaving staff to work 12-13 hour days largely just approving AI output. He says engineers of all seniority levels are reduced to prompting the AI, with little time to review code or fix bugs, and calls the job 'soul-sucking.'
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