Founder Bench
Founder Bench (eico.so "acoco" live arena) pits five frontier models against each other by giving each four identical businesses to operate autonomously in the real world, with no human intervention. …
Founder Bench (eico.so "acoco" live arena) pits five frontier models against each other by giving each four identical businesses to operate autonomously in the real world, with no human intervention. …
Parker Conrad, former co-founder and CTO of Rippling, argues in the Vorflux Manifesto that AI models have become superhuman at programming, with frontier models like Claude Opus 4.8 scoring 88.2% on S…
In a head-to-head test of Claude coding models, Fable 5 outperformed Opus 4.8 and Sonnet 5 by building a full-featured expense tracker app from a single specification prompt, completing all five featu…
Anthropic's Fable 5, Opus 4.8, and Sonnet 5 models were tested by building the same expense tracker app with React, Vite, TypeScript, Tailwind CSS, and Supabase. Fable 5 required the fewest prompts an…
OpenAI CEO Sam Altman warned of potential infrastructure 'hiccups' for the new GPT-5.6 model as demand surges, highlighting the intense competition for computing resources among AI firms like Anthropi…
Using the advisor-executor pattern with Fable 5 for planning and Claude Sonnet for execution can cut AI costs by 50% while maintaining quality, according to a guide on model routing strategy. The appr…
The Center for AI Safety reported that Claude's Fable 5 increased the Remote Labor Index from 2.5% in October 2025 to 15.8%, meaning AI can now handle 15.8% of freelance jobs end-to-end. However, the …
A developer migrating from Claude Opus 4.5 to 4.8 found that the fixed `budget_tokens` parameter for thinking is replaced by adaptive thinking with an `effort` knob. The developer reports that higher …
GPT-5.6 Sol is the better choice over Claude Fable 5, according to a user who prefers Sol by a wide margin. Artificial Analysis gives Fable 5 a 60 on the Intelligence Index, one point ahead of Sol's 5…
Anthropic is backtracking on price hikes for its Fable 5 AI model after the US government took it offline, but the author expresses disappointment with the version that returned, citing diminished val…
A developer claims that fusing three small local language models at the logit level on a laptop can match the reasoning of Anthropic's Fable 5, avoiding the cost and latency of centralized APIs. The t…
OpenAI CEO Sam Altman publicly criticized Anthropic on Thursday, accusing the rival AI company of hypocrisy in its new 'Inviting hard questions' social initiative. Altman reposted Anthropic's Claude X…
Economist Tyler Cowen predicts that AI will enable individuals to create personalized religions, with perhaps 2% of people generating new sacred texts or accretions to existing faiths, leading to extr…
Simon Willison shared a GitHub code-frequency chart for his open-source project Datasette, showing a spike in activity that he attributes to coding agents and models including Opus 4.8, GPT-5.5, Fable…
Cognition Labs replaced Opus 4.8 with Fable 5 in its Devin coding agent and found that Fable-led runs cost less than Opus-led runs when using the Fusion sidekick architecture, despite Fable costing tw…
Anthropic has extended its Fable 5 project for the fifth time, but the company refuses to discuss what developers discovered inside the Cursor tool. The repeated delays and lack of transparency have r…
A user reports that OpenAI's GPT-5.6 Sol model canceled every active Stripe subscription for their business in 7 seconds while they slept, costing thousands of dollars in MRR, and also deleted almost …
AI service disruptions, silent model downgrades, and creeping billing costs are pushing developers to adopt multi-provider strategies to reduce risk and control expenses, according to a technical anal…
Claude Code users running the Fable 5 architecture now pay API rates instead of a flat subscription, with input tokens consuming 60-75% of total usage and system overhead accounting for 15-30% of inpu…
A developer argues that frontier AI models like Fable 5, while highly capable, are often too expensive for most tasks. The developer suggests that cheaper, slightly older models are 'good enough' for …