FrontierThe story, in brief
Claude Sonnet 5 continues Anthropic's pattern of hiding price increases behind unchanged token rates
Claude Sonnet 5 beats Opus on benchmarks. But real costs nearly doubled. Anthropic's hidden pricing strategy decoded.
The KeyNews take
Why it matters
Anthropic is masking price increases by keeping token rates flat while new models consume 40% more tokens per task—a pattern that fundamentally changes the math for enterprise AI budgets and shifts the perceived value of model benchmarks.
The key facts
5 to knowClaude Sonnet 5 ranks 5th on Artificial Analysis Intelligence Index with 53 points
Sonnet 5 beats Opus 4.8 on some agent-based tasks despite lower official tier
Sonnet 5 consumes ~40% more tokens per task than predecessor
Real cost nearly doubled despite identical list prices
Pattern of hidden price increases identified across Anthropic releases
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: Claude Sonnet 5 ranks fifth in the Artificial Analysis Intelligence Index with 53 points and even beats the pricier Opus 4.8 on some agent-based tasks. But the model chews through about 40 percent more tokens per task than its predecessor, nearly doubling real costs despite identical list prices.…