InjazAI

Anthropic released Claude Sonnet 5.5, which runs 30%+ faster and costs up to 30% less for most work at the same price as Sonnet 5, beating it on every benchmark and becoming the default model for claude.ai's free tier.

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Claude Sonnet 5.5: 30% Faster, Up to 30% Cheaper, Beats Sonnet 5 on Every Benchmark

What's new in Claude Sonnet 5.5?

FAQ

What is Claude Sonnet 5.5?

It is a new Anthropic model that runs 30%+ faster and costs up to 30% less than Sonnet 5 at the same price point, beating it on every published benchmark.

How does Sonnet 5.5 compare to Opus 5.5?

Sonnet 5.5 appears almost as good as Opus 5.5 on some coding tasks, including viral 3D animation tricks, but shares a bug in 'max' thinking effort mode.

Is claude.ai's free tier better than ChatGPT's free tier?

According to the source, yes: claude.ai's free tier now uses Sonnet 5.5, while ChatGPT's free tier uses Luna 5.6, giving Anthropic a more capable free offering currently.

Should MENA teams adopt Sonnet 5.5 now?

It looks attractive on speed and cost, but teams should test it on real workloads first, especially given the 'max' thinking effort bug that can affect complex tasks.

Source: Simon Willison (LLM & tools)

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