Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.224 Home All releases olderv2.1.223 v2.1.225newer

Effort picker can show relative cost, gated off

Not switched on
Useful3 Signal4
Thinking Effort

Effort levels can be labelled with relative cost like ~2x, hidden behind an off gate.

The relative-cost labels need both a default-off gate and per-model cost data.

Feature flag
tengu_marbled_teal Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.224: on

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.224. It isn't a statement about your account. What a flag value here can and cannot tell you

What

The effort level slider can label each level with an estimated cost multiplier against the model's default effort, shown as ~2x or ~0.25x, with a distinct note on the default level. It is behind the tengu_marbled_teal gate, which falls back to off, and it also needs per-model cost index data to be present.

Evidence

the estimated cost of

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.224 →