Module models 

Curated list of Claude models known to work with this CLI. Centralized so the settings dropdown, defaults, and subagent hints agree.

Constants

DEFAULT_LEGACY_ADAPTIVE_FALLBACK

Default legacy-model thinking budget used when the “adaptive” sentinel (0) leaks into the non-adaptive request path. Matches the “high” tier.

KNOWN_MODELS

Functions

context_window_for_model

Returns the input context window size for a given model, in tokens. Used as the denominator for the chatui context-usage bar and anywhere else the client needs to know how much prompt the model will accept.

default_model

effort_for_thinking_level

Maps a SynapsCLI thinking level to an Anthropic effort value for models that use adaptive thinking (Opus 4.6+/Sonnet 4.6+). Effort controls thinking depth when budget_tokens is unavailable/deprecated.

model_supports_1m

Returns true for models that support opting into the 1M context window via the context-1m-2025-08-07 beta header.

model_supports_adaptive_thinking

Returns true for models that support (and require) adaptive thinking: thinking: {type: "adaptive"} with NO budget_tokens field.

thinking_level_for_budget

Maps a raw thinking_budget value to the user-facing level name.