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feat(openai-codex): add gpt-5.3-codex-spark model metadata #11620

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Merged
hannesrudolph merged 1 commit into from
Feb 20, 2026
+25 −1
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feat(openai-codex): add gpt-5.3-codex-spark model metadata #11620

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14 changes: 14 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 @@ -68,6 +68,20 @@ export const openAiCodexModels = {
supportsTemperature: false,
description: "GPT-5.3 Codex: OpenAI's flagship coding model via ChatGPT subscription",
},
"gpt-5.3-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-5.3 Codex Spark: Fast, text-only coding model via ChatGPT subscription",
},
"gpt-5.2-codex": {
maxTokens: 128000,
contextWindow: 400000,
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12 changes: 11 additions & 1 deletion src/api/providers/__tests__/openai-codex.spec.ts
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Expand Up @@ -3,7 +3,7 @@
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"])(
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 })
Expand All @@ -23,4 +23,14 @@ describe("OpenAiCodexHandler.getModel", () => {
expect(model.id).toBe("gpt-5.3-codex")
expect(model.info).toBeDefined()
})

it("should use Spark-specific limits and capabilities", () => {
const handler = new OpenAiCodexHandler({ apiModelId: "gpt-5.3-codex-spark" })
const model = handler.getModel()

expect(model.id).toBe("gpt-5.3-codex-spark")
expect(model.info.contextWindow).toBe(128000)
expect(model.info.maxTokens).toBe(8192)
expect(model.info.supportsImages).toBe(false)
})
})
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