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feat: add GPT-5.4 Codex Spark fast models #12113

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feat: add GPT-5.4 Codex Spark fast models #12113

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28 changes: 28 additions & 0 deletions packages/types/src/providers/openai-codex.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -202,6 +202,34 @@ export const openAiCodexModels = {
supportsTemperature: false,
description: "GPT-5.4 Mini: Lower-cost GPT-5.4 model via ChatGPT subscription",
},
"gpt-5.4-codex-spark": {
maxTokens: 8192,
contextWindow: 128000,
includedTools: ["apply_patch"],
excludedTools: ["apply_diff", "write_to_file"],
supportsImages: false,
supportsPromptCache: true,
supportsReasoningEffort: ["low", "medium", "high", "xhigh"],
reasoningEffort: "medium",
inputPrice: 0,
outputPrice: 0,
supportsTemperature: false,
description: "GPT-5.4 Codex Spark: Fast, text-only coding model via ChatGPT subscription",
},
"gpt-5.4-mini-codex-spark": {
maxTokens: 8192,
contextWindow: 128000,
includedTools: ["apply_patch"],
excludedTools: ["apply_diff", "write_to_file"],
supportsImages: false,
supportsPromptCache: true,
supportsReasoningEffort: ["low", "medium", "high", "xhigh"],
reasoningEffort: "medium",
inputPrice: 0,
outputPrice: 0,
supportsTemperature: false,
description: "GPT-5.4 Mini Codex Spark: Fast, text-only coding model via ChatGPT subscription",
},
"gpt-5.2": {
maxTokens: 128000,
contextWindow: 400000,
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50 changes: 38 additions & 12 deletions src/api/providers/__tests__/openai-codex.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,18 +3,24 @@
import { OpenAiCodexHandler } from "../openai-codex"

describe("OpenAiCodexHandler.getModel", () => {
it.each(["gpt-5.1", "gpt-5", "gpt-5.1-codex", "gpt-5-codex", "gpt-5-codex-mini", "gpt-5.3-codex-spark"])(
"should return specified model when a valid model id is provided: %s",
(apiModelId) => {
const handler = new OpenAiCodexHandler({ apiModelId })
const model = handler.getModel()

expect(model.id).toBe(apiModelId)
expect(model.info).toBeDefined()
// Default reasoning effort for GPT-5 family
expect(model.info.reasoningEffort).toBe("medium")
},
)
it.each([
"gpt-5.1",
"gpt-5",
"gpt-5.1-codex",
"gpt-5-codex",
"gpt-5-codex-mini",
"gpt-5.3-codex-spark",
"gpt-5.4-codex-spark",
"gpt-5.4-mini-codex-spark",
])("should return specified model when a valid model id is provided: %s", (apiModelId) => {
const handler = new OpenAiCodexHandler({ apiModelId })
const model = handler.getModel()

expect(model.id).toBe(apiModelId)
expect(model.info).toBeDefined()
// Default reasoning effort for GPT-5 family
expect(model.info.reasoningEffort).toBe("medium")
})

it("should fall back to default model when an invalid model id is provided", () => {
const handler = new OpenAiCodexHandler({ apiModelId: "not-a-real-model" })
Expand All @@ -34,6 +40,26 @@ describe("OpenAiCodexHandler.getModel", () => {
expect(model.info.supportsImages).toBe(false)
})

it("should use GPT-5.4 Spark-specific limits and capabilities", () => {
const handler = new OpenAiCodexHandler({ apiModelId: "gpt-5.4-codex-spark" })
const model = handler.getModel()

expect(model.id).toBe("gpt-5.4-codex-spark")
expect(model.info.contextWindow).toBe(128000)
expect(model.info.maxTokens).toBe(8192)
expect(model.info.supportsImages).toBe(false)
})

it("should use GPT-5.4 Mini Spark-specific limits and capabilities", () => {
const handler = new OpenAiCodexHandler({ apiModelId: "gpt-5.4-mini-codex-spark" })
const model = handler.getModel()

expect(model.id).toBe("gpt-5.4-mini-codex-spark")
expect(model.info.contextWindow).toBe(128000)
expect(model.info.maxTokens).toBe(8192)
expect(model.info.supportsImages).toBe(false)
})

it("should use GPT-5.4 Mini capabilities when selected", () => {
const handler = new OpenAiCodexHandler({ apiModelId: "gpt-5.4-mini" })
const model = handler.getModel()
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