(model: string)
| 90 | // TODO(inigo): add support for probing unknown models via API error detection |
| 91 | // Provider-aware thinking support detection (aligns with modelSupportsISP in betas.ts) |
| 92 | export function modelSupportsThinking(model: string): boolean { |
| 93 | const supported3P = get3PModelCapabilityOverride(model, 'thinking') |
| 94 | if (supported3P !== undefined) { |
| 95 | return supported3P |
| 96 | } |
| 97 | if (isInternalBuild()) { |
| 98 | if (resolveAntModel(model.toLowerCase())) { |
| 99 | return true |
| 100 | } |
| 101 | } |
| 102 | // IMPORTANT: Do not change thinking support without notifying the model |
| 103 | // launch DRI and research. This can greatly affect model quality and bashing. |
| 104 | const canonical = getCanonicalName(model) |
| 105 | const provider = getAPIProvider() |
| 106 | // 1P and Foundry: all Claude 4+ models (including Haiku 4.5) |
| 107 | if (provider === 'foundry' || provider === 'firstParty') { |
| 108 | return !canonical.includes('claude-3-') |
| 109 | } |
| 110 | // 3P (Bedrock/Vertex): only Opus 4+ and Sonnet 4+ |
| 111 | return canonical.includes('sonnet-4') || canonical.includes('opus-4') |
| 112 | } |
| 113 | |
| 114 | // @[MODEL LAUNCH]: Add the new model to the allowlist if it supports adaptive thinking. |
| 115 | export function modelSupportsAdaptiveThinking(model: string): boolean { |
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