Exciting news: Claude Fable 5 ranks #1 on the new Agent Arena leaderboard!
Fable 5 leads by the widest margin ever over Opus-4.8 and GPT-5.5 on two key signals: confirmed task success rate and praise vs. complaint, despite weaker steerability. If Fable can do something, it will do it very well. If it can't/doesn't want to do something, it may be hard to steer the model towards the goal.
In Agent Arena, we measure models on millions of real-world, long-horizon agentic tasks. Models get web search, filesystem, and terminal tools to complete complex workflows: writing code, creating slide deck, researching the web, building apps, and analyzing documents.
We use the causal tracing methodology to measure a model's net improvement which indicates how much it improves outcomes relative to the average model.
Huge congrats to @AnthropicAI for the incredible milestone! Below we break down how Claude Fable 5 (based on Mythos) scored across 5 signals, drawn from tasks submitted by a global community of users.
Model AI China harganya murah bgt & API-nya user-friendly. Tapi gimana caranya fully utilize tanpa expose data privacy? Self hosted malah jadi mahal di infra lokal🤣
Wayangi now work both TCP and UDP, kalo jaringan kantor/kampus/isp blocking UDP, bisa pake TCP sebagai fallback broadcast inbound public IPv6
gas cobain free tier nya di:
wayangi. dalang. io
@dalangcloud