fable 5
30 articles about fable 5 in AI news
Claude Fable 5 Solves String Theory Problem Stalled for Six Months
Claude Fable 5 solved a string theory problem stalled for six months. Professor Yuji Tachikawa says the model made a non-trivial observation and used SymPy for verification.
OpenAI GPT-5.6 Sol matches Fable 5 at 1/3 cost, adds multi-agent API
OpenAI's GPT-5.6 Sol nearly matches Claude Fable 5 on aggregate benchmarks at one-third the cost, with new multi-agent and tool-calling APIs.
Anthropic's Fable 5 gets production workshop series from @_vmlops
Anthropic's Fable 5 gets production workshop series from @_vmlops covering capability curves, reliable agents, and deployment at scale.
Claude Fable 5 in Claude Code: The Routing Strategy That Saves Your Weekly Limit
Claude Fable 5 ($10/$50 per M tokens) scores 91 on Senior Engineer benchmarks vs Opus 4.8's 63—use `/model fable` for complex, multi-file tasks, but reserve quick edits for cheaper models to save your weekly limit.
Fable 5 Returns: First Model Lobotomized by US Policy Comes Back Online
Fable 5, lobotomized June 12 under US export controls, returned online today — first frontier model restored by policy.
Zhipu's GLM 5.2 claims Design Arena's top HTML spot with Elo 1,360 — edging a hobbled Claude Fable 5
Zhipu AI's 753-billion-parameter open-weight model GLM 5.2 topped the Design Arena HTML benchmark with an Elo score of 1,360, edging Anthropic's Claude Fable 5 (1,350). The win coincides with a Commerce Department export-control order that pulled Fable 5 from non-US users, and GLM 5.2's API pricing
Anthropic's Fable 5 Beta Shows 10x Drug Design Speedup Ahead of IPO
Anthropic's Fable 5 beta achieved 10x speedup in protein design before being pulled from testing, signaling enterprise monetization ahead of IPO.
Fable 5: Claude's Biggest Leap Since Opus 4.5, Says Beta Tester
Beta tester says Fable 5 is Claude's biggest leap since Opus 4.5, with emergent debugging and design capabilities.
Sakana AI's Fugu Orchestrator Matches Anthropic Fable 5 Without Using It
Sakana AI's Fugu orchestrator matches Anthropic's top models on benchmarks without using them, offering a hedge against vendor lock-in amid export controls.
Claude Fable 5 Migration: Cut Prescriptive Skills 60% to Stop Degrading Output
Audit your ~/.claude/skills for temperature, budget_tokens, and 'show your reasoning'. Replace 6+ step procedures with goal+constraints. Cut MUST/NEVER blocks to only guard money, deletions, or identity.
Claude Opus 4.8 Now Beats Gemini Pro 5 in Coding Benchmarks — What It
Claude Opus 4.8 beats Gemini Pro 5 by 11 points on Fable 5. Claude Code users should run `claude code --model opus-4.8` for complex coding tasks.
Zhipu GLM-5.2 Hits No. 2 Globally; Tang Tells Musk China Won't Wait Until
Zhipu's 744B-parameter GLM-5.2 ranks No. 2 globally on Code Arena. Tang Jie tells Musk China will match Fable 5 by end of 2026, not Q1 2027.
White House Forced Anthropic to Cut SK Telecom Access, Triggering Model Shutdown
White House forced Anthropic to cut SK Telecom access over China ties, then shut down Mythos and Fable 5 after security flaws emerged.
Trump Lifts Export Ban on Anthropic’s Mythos, Fable Models
U.S. lifted export ban on Anthropic's Mythos and Fable models June 30. Anthropic restores access July 1 under deal requiring proactive security risk detection.
OpenRouter Fusion API Claims Fable-Level IQ at Half the Cost
OpenRouter's Fusion API routes queries across providers to match Fable-level intelligence at half the cost, per company claims. No third-party benchmarks disclosed.
Anthropic Releases Claude Mythos Publicly as 'Fable' at 2x Opus Price
Anthropic released Claude Mythos publicly as 'Fable' at 2x Opus pricing, targeting agent workflows with strong safety limits.
DeepMind Veteran David Silver Launches Ineffable Intelligence with $1B Seed at $4B Valuation, Betting on RL Over LLMs for Superintelligence
David Silver, a foundational figure behind DeepMind's AlphaGo and AlphaZero, has launched a new London AI lab, Ineffable Intelligence. The startup raised a $1 billion seed round at a $4 billion valuation to pursue superintelligence through novel reinforcement learning, explicitly rejecting the LLM paradigm.
Muxer: Open-Source Model Multiplexer Slashes Claude Code Costs by Routing
Muxer reduces Claude Code costs by multiplexing models per subtask via agent frontmatter and session hooks. Keep Fable/Opus for planning; route boilerplate to Haiku.
Claude Opus 5 Is Now in Claude Code: How to Use Fast Mode and Save 50% on Tokens
Claude Opus 5 is now in Claude Code with Fast Mode (2.5x speed) at Opus 4.8 pricing. Run `claude code --model opus-5` to start saving 50% on tokens immediately.
ActiveVision Benchmark: Humans 96.1%, Best AI 10.6%
ActiveVision benchmark: humans 96.1%, best AI 10.6%. The 85.5-point gap reveals fundamental limits in iterative visual reasoning for current models.
Alibaba Qwen3.8: 2.4T Parameter Open-Weight Model Incoming
Alibaba's Qwen3.8, a 2.4T parameter open-weight model, was announced. It would be the largest open-weight model ever, but lacks benchmark details.
Moonshot AI's Kimi K3: 2.8T params, 1M token window, $3/M input
Moonshot AI released Kimi K3, a 2.8T-parameter mixture-of-experts model with 1M token context window and $3/M input pricing, claiming autonomous chip design and research capabilities.
GPT-Red: OpenAI's LLM Super-Hacker Finds 84% of Attacks, Humans 13%
OpenAI's GPT-Red LLM finds 84% of attacks vs 13% for humans, hardening GPT-5.6 Sol. Automated red-teaming shifts safety paradigm.
OpenAI GPT-5.6 Sol, Terra, Luna Launch on Bedrock at Same Price
OpenAI's GPT-5.6 Sol, Terra, and Luna launch on Amazon Bedrock at matching first-party pricing. Sol scores 80 on Coding Agent Index.
Why Claude Code's 80.8% SWE-Bench Score and 1M Context Window Beat Codex
Claude Code's 80.8% SWE-Bench score, 1M token context, and local execution make it the top choice for senior devs—use `claude code` in your terminal for complex codebase work.
OpenAI GPT-5.6 Launches Thursday After US Gov't Lifts Ban
OpenAI's GPT-5.6 Sol launches Thursday after US gov't lifts ban. It beats Claude Mythos 5 on benchmarks at half the cost.
DonnyClaude: A Verified Workflow Engine That Makes Claude Code Actually
DonnyClaude adds a durable planning layer and deterministic verification gates to Claude Code so the model can't mark work done until tests and checks pass. Install with npx donnyclaude.
Claude Code Digest — Jul 01–Jul 04
Agentic coding is no longer “cheap experimentation”: Lovable burned $85K in tokens, and the real bill came from debugging, not generation.
CVEs spike 3.5x after Anthropic's Mythos Preview launch
High-severity CVEs jumped 3.5x in June after Anthropic's Mythos Preview launch. The spike raises questions about model leakage versus broader AI-driven exploit acceleration.
Claude Code Steganography Flagged Chinese Users; Anthropic Rolls Back
Anthropic's Claude Code 2.1.91 used steganography to detect Chinese users. After Reddit exposure, Anthropic rolled back the feature, calling it an experiment against model distillation.