Anthropic released Claude Opus 5, a model that approaches the performance of its own frontier system Fable 5 while costing half as much to run, priced at $5 per million input tokens and $25 per millio…
Anthropic released a new AI model that rivals Fable 5 in capability and cost-effectiveness, according to CNBC. The model aims to address business concerns over AI expenses, potentially boosting Anthro…
Anthropic on Friday launched Opus 5, its latest Claude AI model that the startup says nears the capabilities of its more powerful Fable 5 at half the price, suited for daily office and programming tas…
Anthropic released Claude Opus 5, its best performing and most cost-effective AI model, rivaling Fable 5 at a lower price as businesses seek cheaper AI solutions, the company announced July 24, 2026.…
Anthropic released Claude Opus 5, an AI model with a toggle for low, medium, or high effort to balance cost and capability, aimed at everyday business needs. The model comes close to the capabilities …
Anthropic released Opus 5, a large language model that nearly matches its top-performing Fable 5 model at half the price, with API costs at $5 per million input tokens and $25 per million output token…
Anthropic launched Opus 5 on Friday, a new version of its heavyweight model that outperforms Fable 5 on several benchmarks while being cheaper and less restrictive. Opus 5 is free from the 30-day data…
Anthropic debuted its Claude Opus 5 AI model on Thursday, the fourth in its Claude 5 family, positioning it as a go-to model for most tasks at half the cost of its most capable model, Fable 5. The com…
Anthropic's Opus 5 model is nearly as capable as Fable 5, according to a comparison by the company. The new AI model shows significant improvements in reasoning and coding tasks, narrowing the gap wit…
Sakana AI released Fugu Ultra v1.1, an AI model router that it claims achieves gains of up to 7.9 points over v1.0 and now outperforms Fable 5 without including it in the routing pool. The update adds…
Moonshot launched Kimi K3, a 2.8-trillion-parameter open-weight model, and within 48 hours had to freeze new subscriptions due to overwhelming demand exceeding GPU capacity. The company cited the mode…
White House science adviser Michael Kratsios accused Moonshot AI of distilling Anthropic's Fable 5 model to develop Kimi K3, a 2.8-trillion-parameter model released July 16, but experts say the timeli…
Anthropic's Fable 5 is the most capable Claude Code model, but setting it as the default is a trap because it cannot stop thinking and thinking is billed as output, leading to unexpectedly high costs.…
Elon Musk proposed in a July 23 Economist interview that rival AI labs should peer-review each other's frontier models before release, arguing competitors are better safety arbiters than governments. …
Levent Alpöge, a mathematician and junior fellow at Harvard's Society of Fellows who works at Anthropic, used Anthropic's Fable 5 large language model to find a counterexample to the Jacobian Conjectu…
US Reps. Ted Lieu (D-Calif.) and Nathaniel Moran (R-Texas) introduced the AI Kill Switch Act, which would let the Trump administration order the shutdown of AI systems that can cause catastrophic harm…
A video podcast host is quitting Spotify's podcast platform due to chronic reliability issues, noting that competitors have not faced similar problems. Moonshot AI's open model Kimi K3 matches Anthrop…
Sakana AI announced Fugu-Ultra v1.1, an upgraded orchestration engine that delivers performance gains of up to 7.9 points over v1.0 and beats leading models like Fable 5 in complex coding and reasonin…
An unnamed user reports that Anthropic's Claude Code models Fable 5 and Opus 4.8 refused to assist with a hardware hacking project involving firmware modification for an e-reader, citing cybersecurity…
Global AI experts are pushing back on US accusations that Chinese startup Moonshot AI distilled its Kimi K3 model from Anthropic's Fable 5, citing a lack of evidence and noting that model outputs are …