Models
DeepSeek V4: How to Choose Between V4-Pro and V4-Flash
DeepSeek V4 ships as two models — V4-Pro and V4-Flash — sharing a 1M-token context but sitting at very different price/capability points. A practical guide to which to use, what they cost, and how to route between them.
Claude Fable 5: What Anthropic's Most Capable Model Means for Builders
Anthropic's most capable public model is available worldwide again. Here is what Claude Fable 5 costs, the new effort and refusal behaviors to design around, and how to adopt it pragmatically.