Anthropic says Fable 5.1 will cost ~25% less than Fable 5 “for typical workloads” because of cheaper cache reads and up to ~45% less “for highly agentic work”
Zac Hall /9to5Mac:
Z.ai's GLM-5.3 scores 60 on the Artificial Analysis Intelligence Index, seven points above GLM-5.2, on par with Kimi K3, but below Opus 5's 63 and Fable 5's 62
GLM-5.3 achieves 60 on the Artificial Analysis Intelligence Index, on par with Kimi K3 and up 7 points from GLM-5.2. Once the weights are released it will be tied as the leading open weights model @Za...
Z.ai's GLM-5.3 with max reasoning scores 60 on the Artificial Analysis Intelligence Index, on par with Kimi K3 but below Opus 5 at 63 and Fable 5 at 62
Anthropic launches Claude Opus 5, which it says comes close to Fable 5 performance at half the price; it is the new default model on Claude Max
Claude Opus 5 is available today. It's a thoughtful and proactive model that comes close to the frontier intelligence of Claude Fable 5 at half the price.
Anthropic launches Claude Opus 5, which it says comes close to Fable 5 performance at half the price; it is the new default model on Claude Max
Claude Opus 5 is available today. It's a thoughtful and proactive model that comes close to the frontier intelligence of Claude Fable 5 at half the price.
Alibaba launches a 2.4T-parameter Qwen3.8 Max preview, saying it rivals frontier AI models and is second only to Fable 5, planning to make it “open-weight soon”
Alibaba launches a 2.4T parameter Qwen3.8 Max preview that it says rivals frontier AI models and is second only to Fable 5, plans to make it “open-weight soon”
Alibaba Group Holding Ltd. launched a preview version of its flagship Qwen3.8 Max model, which it described as comparable …
Anthropic says Fable 5 is available on Pro, Max, Team, and seat-based Enterprise plans through June 22, after which using Fable 5 will require usage credits
and it's based on a model Anthropic once deemed too risky for the publicKong Byeongseonby Ryu Hyunseok /The Asia Business …:High-Performance Model Launch and Ethics Discourse Simultaneously... Anthrop...
Anthropic says Fable 5 has invisible safeguards that use prompt modification, steering vectors, or PEFT to limit its effectiveness for building frontier LLMs
Key Points … Ask about this article... Both models share the same base model. Fable 5 ships with conservative safety guardrails for general use.
Anthropic says Fable 5 has invisible safeguards that use prompt modification, steering vectors, or PEFT to limit its effectiveness for building frontier LLMs
Key Points … Ask about this article... Both models share the same base model. Fable 5 ships with conservative safety guardrails for general use.