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chore(core): bump GitHub Copilot API version to 2026-08-01 (#47108)

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Aiden Cline 2026-09-03 15:38:32 -05:00 • committed by GitHub
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commit b2fb2c5e36
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4 changed files with 46 additions and 5 deletions
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8
packages/core/src/github-copilot/models.ts
View file

@ -18,7 +18,9 @@ const RemoteModel = Schema.Struct({
Schema.Struct({
batch_size: Schema.Number,
default: Schema.Struct({
cache_price: Schema.Number,
// API version 2026-08-01 renamed cache_price to cache_read_price.
cache_price: Schema.optional(Schema.Number),
cache_read_price: Schema.optional(Schema.Number),
input_price: Schema.Number,
output_price: Schema.Number,
}),
@ -166,7 +168,9 @@ function build(id: Model.ID, remote: UsableModel, baseURL: string, previous?: Mo
input: Money.USDPerMillionTokens.make((prices?.default.input_price ?? 0) * usdPerMillion),
output: Money.USDPerMillionTokens.make((prices?.default.output_price ?? 0) * usdPerMillion),
cache: {
read: Money.USDPerMillionTokens.make((prices?.default.cache_price ?? 0) * usdPerMillion),
read: Money.USDPerMillionTokens.make(
(prices?.default.cache_read_price ?? prices?.default.cache_price ?? 0) * usdPerMillion,
),
write: Money.USDPerMillionTokens.zero,
},
},

2
packages/core/src/plugin/provider/github-copilot.ts
View file

@ -13,7 +13,7 @@ import { Provider } from "../../provider.js"
import type { PluginInternal } from "../internal.js"
const clientID = "Ov23li8tweQw6odWQebz"
const apiVersion = "2026-06-01"
const apiVersion = "2026-08-01"
const userApiVersion = "2025-04-01"
const pollingSafetyMargin = 3000
const methodID = Integration.MethodID.make("device")

37
packages/core/test/github-copilot/models.test.ts
View file

@ -118,3 +118,40 @@ test("defensively syncs advertised Copilot models", async () => {
await server.stop(true)
}
})
test("prices cache reads from either token price spelling", async () => {
// API version 2026-08-01 renamed cache_price to cache_read_price; older payloads still use cache_price.
const item = (id: string, prices: Record<string, number>) => ({
model_picker_enabled: true,
id,
name: id,
version: `${id}-2026-08-01`,
supported_endpoints: ["/chat/completions"],
billing: { token_prices: { batch_size: 1_000_000, default: { input_price: 250, output_price: 1500, ...prices } } },
capabilities: {
family: "gpt",
limits: { max_output_tokens: 1000, max_prompt_tokens: 8000 },
supports: { tool_calls: true },
},
})
const server = Bun.serve({
port: 0,
fetch: () =>
Response.json({
data: [
item("renamed", { cache_read_price: 25, cache_write_price: 0 }),
item("legacy", { cache_price: 25 }),
item("unpriced", {}),
],
}),
})
try {
const models = await CopilotModels.get(server.url.origin, {}, [])
expect(models.get(Model.ID.make("renamed"))?.cost[0]).toMatchObject({ input: 2.5, output: 15, cache: { read: 0.25 } })
expect(models.get(Model.ID.make("legacy"))?.cost[0]).toMatchObject({ input: 2.5, output: 15, cache: { read: 0.25 } })
expect(models.get(Model.ID.make("unpriced"))?.cost[0]).toMatchObject({ cache: { read: 0 } })
} finally {
await server.stop(true)
}
})

4
packages/core/test/plugin/provider-github-copilot.test.ts
View file

@ -122,7 +122,7 @@ describe("GithubCopilotPlugin", () => {
expect(requests[0]?.has("x-api-key")).toBe(false)
expect(requests[0]?.get("x-initiator")).toBe("user")
expect(requests[0]?.get("copilot-vision-request")).toBe("true")
expect(requests[0]?.get("x-github-api-version")).toBe("2026-06-01")
expect(requests[0]?.get("x-github-api-version")).toBe("2026-08-01")
expect(requests[0]?.get("user-agent")).toBe("opencode/beta/1.2.3/test")
}),
)
@ -145,7 +145,7 @@ describe("GithubCopilotPlugin", () => {
expect(event.request.headers.has("x-api-key")).toBe(false)
expect(event.request.headers.get("x-initiator")).toBe("user")
expect(event.request.headers.get("anthropic-beta")).toBe("interleaved-thinking-2025-05-14")
expect(event.request.headers.get("x-github-api-version")).toBe("2026-06-01")
expect(event.request.headers.get("x-github-api-version")).toBe("2026-08-01")
}),
)