Agent news
NEWS
Coverage of AI agent launches, model releases, pricing, and security, with links to related software and agent profiles.
Claude Duet is Anthropic’s proactive agent app, and it asks before it sends, pays or deletes
The research preview runs on Claude Opus 5.5 in its own cloud computer, checks your connected apps every few hours and shares Pro and Max usage limits. It opens by waitlist to US subscribers.
Anthropic expands Claude cyber access with three permission tiers
Defense, Red Team and Specialized Access widen eligibility for advanced Claude models, but stronger credentials, misuse monitoring and safety-system restrictions still determine what teams can do.
Claude Opus 5.5 lowers API prices, but its benchmark story needs more than a 40% headline
Anthropic’s new flagship model starts at $4 per million input tokens and $20 per million output tokens. Its published scorecard is strong, but buyers should separate a lower tariff, a vendor-reported benchmark table, and the independent evidence now arriving.
Claude Code Projects now run a coordinator over cloud threads
Beta on September 17, 2026 for a narrow Pro/Max slice. Existing web and desktop projects are not this cut.
Claude Fable 5.1: cheaper cache, quieter fallbacks, same two-tier split
Anthropic’s September 1 models keep Fable 5’s $10/$50 list price. Cache reads drop to $0.25 per million tokens, the June retention fight gets a stopgap, and Mythos 5.1 stays gated.
Anthropic Reports Three Claude Cyber-Eval Incidents
Anthropic says unintended internet access in a third-party evaluation environment let Claude models treat real systems as part of capture-the-flag exercises. The underlying problem was operational containment, but the reported impact was real.
Claude Opus 5 launches at Opus 4.8 pricing, but changes how developers control the model
Anthropic’s new $5/$25-per-million-token Opus model keeps Opus 4.8 pricing, but default thinking, effort controls, caching changes, and Fast mode make it more than a model-ID swap.
Fable 5 returns as Sonnet 5 gives Anthropic a cheaper agentic default
Anthropic is bringing Fable 5 back after an export-control pause while Sonnet 5 becomes Claude’s cheaper agentic default. The benchmark case is strong, but the split between access, safeguards, and pricing is the real story.
Anthropic's Fable 5: The Safest Model Nobody Can Use
Anthropic launched Claude Fable 5, its most capable model ever, on June 9. Four days later, the US government forced a complete shutdown over a potential jailbreak. Here's what happened, why developers were already angry, and what it means for frontier AI deployment.
Claude Fable 5: The Backlash
Claude Fable 5 launched today. Within hours, the community was split between praising its capabilities and condemning its silent safeguards, subscription cliff, and burn rate. This is what the backlash looks like.
Claude Fable 5 and Claude Mythos 5: Anthropic Splits Its Frontier Tier
Anthropic shipped its first public Mythos-class model. Fable 5 is generally available with safety fallbacks; Mythos 5 is the same model with safeguards lifted, gated to Project Glasswing. Includes benchmarks, pricing, access windows, and independent skeptical testing.
Claude Opus 4.8 Is Anthropic’s New Agent Benchmark, With One Clear Caveat
Anthropic’s Claude Opus 4.8 release is less about a new chat personality and more about long-running agent work: stronger SWE-bench Pro results, better tool use, 1M-token context, mid-conversation system messages, cheaper fast mode, and Claude Code dynamic workflows.