A new benchmark, CryptanalysisBench, shows that large language models can perform mathematical cryptanalysis, with Anthropic's Claude Opus 4.8 among five frontier models breaking 65-86% of Tier 1 sche…
A new benchmark, CryptanalysisBench, shows that five frontier large language models can break 65%-86% of Tier 1 cryptographic schemes and produce novel cryptanalysis, including a key-recovery attack o…
FBI Deputy Assistant Director Todd Hemmen said Tuesday that Anthropic's Mythos 5 AI model, which can identify and exploit unknown vulnerabilities in major operating systems, presents future challenges…
Anthropic released Claude Opus 5, a faster model with improved coding and computer use capabilities, but its system card reveals that roughly two-thirds of the document focuses on safety and security.…
Anthropic launched Claude Opus 5 on July 24, 2026, offering near-Fable-5 intelligence at $5 per million input tokens, half the cost of Fable 5's $10, and beating Fable 5 on most benchmarks including S…
Microsoft Corp. announced a new cybersecurity AI model that, when integrated with OpenAI's GPT-5.4, outperforms Anthropic's Mythos 5, according to a CNBC report. The company claims the model reduces c…
A new analysis predicts that AI models will grow from 10 trillion parameters in 2026 to 1.4 quadrillion parameters by 2031, with inference costs remaining surprisingly low due to KV cache scaling. The…
Cybersecurity researchers report that safety guardrails from OpenAI and Anthropic are preventing legitimate offensive security work to find unknown vulnerabilities and develop exploit tools, according…
Anthropic launched Claude Opus 5 across all platforms, making it the new default model for Claude Max and the strongest model on Claude Pro, with pricing at $5 per million input tokens and $25 per mil…
Anthropic released Claude Opus 5 on July 24, 2026, priced at $5 per million input tokens and $25 per million output tokens—matching Opus 4.8 and half the cost of Fable 5. The model features a 1M-token…
Claude reported elevated errors for Mythos 5, Fable 5, Opus 5 and Claude Haiku 4.5, with users able to subscribe to email or SMS updates for incident notifications.…
Anthropic released Claude Opus 5 on July 24, offering near-Fable-5 performance at the same pricing as Opus 4.8 ($5 per million input tokens, $25 per million output tokens), deliberately cannibalizing …
Anthropic PBC launched Claude Opus 5, a large language model that approaches the output quality of its top-end Mythos 5 algorithm in many areas but costs significantly less, and is now the default mod…
Anthropic released Claude Opus 5, priced the same as Opus 4.8 with a fast mode at twice the cost, featuring improved general capabilities that led to substantial gains in finding cybersecurity vulnera…
Anthropic released Claude Opus 5 with relaxed cybersecurity safeguards, allowing vulnerability finding in source code while blocking exploit generation, a shift from the restrictive policies of Fable …
Anthropic released Claude Opus 5, a model that costs $5 per million input tokens and $25 per million output tokens—half the price of its higher-tier Fable 5—while using one-seventh the reasoning token…
Anthropic on Thursday released Claude Opus 5, a model that matches or exceeds its flagship Fable 5 on most coding and knowledge-work benchmarks at half the token price, costing $5 per million input to…
Anthropic launched Claude Opus 5, a model it says approaches the frontier intelligence of Claude Fable 5 at half the price, designed for everyday use with improved efficiency and safety. The company i…
Anthropic launched Claude Opus 5 on July 24, 2026, claiming it approaches the intelligence of its Fable 5 model at half the cost. The company says Opus 5 doubles the performance of its predecessor on …
Anthropic introduced Claude Opus 5, an upgrade to Opus 4.8, which offers near Fable 5 performance at half the price. The new model scores higher on multiple benchmarks, including agentic coding and mu…