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feat: add MiniMax M2.5 model #11458

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feat: add MiniMax M2.5 model #11458

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6 changes: 6 additions & 0 deletions .changeset/add-minimax-m25.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
---
"roo-cline": patch
"@roo-code/types": patch
---

Add MiniMax M2.5 model and set it as the default MiniMax model
17 changes: 16 additions & 1 deletion packages/types/src/providers/minimax.ts
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Expand Up @@ -5,9 +5,24 @@ import type { ModelInfo } from "../model.js"
// https://platform.minimax.io/docs/api-reference/text-openai-api
// https://platform.minimax.io/docs/api-reference/text-anthropic-api
export type MinimaxModelId = keyof typeof minimaxModels
export const minimaxDefaultModelId: MinimaxModelId = "MiniMax-M2"
export const minimaxDefaultModelId: MinimaxModelId = "MiniMax-M2.5"

export const minimaxModels = {
"MiniMax-M2.5": {
maxTokens: 16_384,
contextWindow: 192_000,
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@roomote roomote bot Feb 14, 2026

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The contextWindow and maxTokens values here are copied from M2 but don't match the M2.5 specs provided in #11457. The issue reporter states M2.5 has a 204,800 context window and 131,072 max output tokens. The PR description also claims these values, but the code still uses M2's 192,000 / 16,384. This will cap output at 16K tokens when the model supports 131K, and the context window calculation will be off by ~13K tokens. MINIMAX_DEFAULT_MAX_TOKENS on line 75 should also be updated to 131,072 to stay consistent with the new default.

Suggested change
maxTokens: 16_384,
contextWindow: 192_000,
maxTokens: 131_072,
contextWindow: 204_800,

Fix it with Roo Code or mention @roomote and request a fix.

supportsImages: false,
supportsPromptCache: true,
includedTools: ["search_and_replace"],
excludedTools: ["apply_diff"],
preserveReasoning: true,
inputPrice: 0.3,
outputPrice: 1.2,
cacheWritesPrice: 0.375,
cacheReadsPrice: 0.03,
description:
"MiniMax M2.5, the latest MiniMax model with enhanced coding and agentic capabilities, building on the strengths of the M2 series.",
},
"MiniMax-M2": {
maxTokens: 16_384,
contextWindow: 192_000,
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20 changes: 18 additions & 2 deletions src/api/providers/__tests__/minimax.spec.ts
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Expand Up @@ -87,6 +87,22 @@ describe("MiniMaxHandler", () => {
expect(model.info).toEqual(minimaxModels[testModelId])
})

it("should return MiniMax-M2.5 model with correct configuration", () => {
const testModelId: MinimaxModelId = "MiniMax-M2.5"
const handlerWithModel = new MiniMaxHandler({
apiModelId: testModelId,
minimaxApiKey: "test-minimax-api-key",
})
const model = handlerWithModel.getModel()
expect(model.id).toBe(testModelId)
expect(model.info).toEqual(minimaxModels[testModelId])
expect(model.info.contextWindow).toBe(192_000)
expect(model.info.maxTokens).toBe(16_384)
expect(model.info.supportsPromptCache).toBe(true)
expect(model.info.cacheWritesPrice).toBe(0.375)
expect(model.info.cacheReadsPrice).toBe(0.03)
})

it("should return MiniMax-M2 model with correct configuration", () => {
const testModelId: MinimaxModelId = "MiniMax-M2"
const handlerWithModel = new MiniMaxHandler({
Expand Down Expand Up @@ -175,10 +191,10 @@ describe("MiniMaxHandler", () => {
expect(model.info).toEqual(minimaxModels[minimaxDefaultModelId])
})

it("should default to MiniMax-M2 model", () => {
it("should default to MiniMax-M2.5 model", () => {
const handlerDefault = new MiniMaxHandler({ minimaxApiKey: "test-minimax-api-key" })
const model = handlerDefault.getModel()
expect(model.id).toBe("MiniMax-M2")
expect(model.id).toBe("MiniMax-M2.5")
})
})

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