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fix(context): resolve MiniMax model context windows #27

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fix(context): resolve MiniMax model context windows #27

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36 changes: 35 additions & 1 deletion restored-src/src/utils/context.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,25 @@ import { getModelCapability } from './model/modelCapabilities.js'
// Model context window size (200k tokens for all models right now)
export const MODEL_CONTEXT_WINDOW_DEFAULT = 200_000

// MiniMax models expose their own context windows, which differ from the
// default window used above.
const MINIMAX_MODEL_CONTEXT_WINDOWS: Readonly<Record<string, number>> = {
'minimax-m3': 1_000_000,
'minimax-m2.7': 204_800,
}

function getMiniMaxContextWindow(model: string): number | null {
const canonical = getCanonicalName(model)
for (const [modelId, contextWindow] of Object.entries(
MINIMAX_MODEL_CONTEXT_WINDOWS,
)) {
if (canonical.includes(modelId)) {
return contextWindow
}
}
return null
}

// Maximum output tokens for compact operations
export const COMPACT_MAX_OUTPUT_TOKENS = 20_000

Expand Down Expand Up @@ -45,7 +64,11 @@ export function modelSupports1M(model: string): boolean {
return false
}
const canonical = getCanonicalName(model)
return canonical.includes('claude-sonnet-4') || canonical.includes('opus-4-6')
return (
canonical.includes('claude-sonnet-4') ||
canonical.includes('opus-4-6') ||
canonical.includes('minimax-m3')
)
}

export function getContextWindowForModel(
Expand All @@ -71,6 +94,17 @@ export function getContextWindowForModel(
return 1_000_000
}

const miniMaxWindow = getMiniMaxContextWindow(model)
if (miniMaxWindow !== null) {
if (
miniMaxWindow > MODEL_CONTEXT_WINDOW_DEFAULT &&
is1mContextDisabled()
) {
return MODEL_CONTEXT_WINDOW_DEFAULT
}
return miniMaxWindow
}

const cap = getModelCapability(model)
if (cap?.max_input_tokens && cap.max_input_tokens >= 100_000) {
if (
Expand Down