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pricing: V4.1 card from 04:00 UTC, as DeepSeek published #5

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Merged
lroolle merged 1 commit into from
Sep 18, 2026
+14 −11
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pricing: V4.1 card from 04:00 UTC, as DeepSeek published #5

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4 changes: 2 additions & 2 deletions eval/pricing.json
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Original file line number Diff line number Diff line change
Expand Up @@ -25,8 +25,8 @@
}
},
{
"since": "2026-09-10T11:00:00Z",
"label": "V4.1 Flash (changelog 2026-09-10); instant inferred, see src/provider/catalog.ts",
"since": "2026-09-10T04:00:00Z",
"label": "V4.1 Flash (changelog 2026-09-10); effective 04:00 UTC per the release note, see src/provider/catalog.ts",
"rates": {
"flash": { "input_hit": 0.003, "input_miss": 0.15, "output": 0.6 },
"pro": { "input_hit": 0.022, "input_miss": 0.66, "output": 1.98 }
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9 changes: 5 additions & 4 deletions src/provider/catalog.ts
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Expand Up @@ -70,11 +70,12 @@ export const CARDS: Card[] = [
},
{
// V4.1 Flash, 2026-09-10: Flash cut on every item, Pro unchanged.
// The instant is INFERRED: our docs mirror read the old card at 04:50
// UTC and the new one at 11:27 UTC that day. 11:00 is the last whole
// hour between, so a call in the gap can only be overstated.
// "New pricing takes effect at 04:00 UTC on Sept 10, 2026" -- DeepSeek's
// release note (news260910; 12:00 Beijing in the Chinese one). The
// pricing page itself still showed the old card at 04:50 UTC, so a date
// read off the page lags the bill.
label: "V4.1",
since: new Date("2026-09-10T11:00:00Z"),
since: new Date("2026-09-10T04:00:00Z"),
timeOfUse: true,
rates: { flash: { inputHit: 0.003, inputMiss: 0.15, output: 0.6 }, pro: V4_PRO },
},
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12 changes: 7 additions & 5 deletions tests/catalog.test.ts
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Expand Up @@ -42,12 +42,14 @@ describe("dated cards", () => {
expect(ratesAt("deepseek-v4-flash", at("2026-09-09T02:00:00Z"))?.inputMiss).toBe(0.44); // Wed peak
});

test("V4.1 Flash card from 2026-09-10 11:00 UTC; pro unchanged across it", () => {
const before = at("2026-09-10T10:59:00Z");
const after = at("2026-09-10T11:00:00Z");
expect(ratesAt("deepseek-flash", before)).toEqual({ inputHit: 0.007, inputMiss: 0.22, output: 0.66 });
test("V4.1 Flash card from 2026-09-10 04:00 UTC; pro unchanged across it", () => {
// 03:59 is inside the 01-04 peak window, 04:00 is outside it, so this
// also proves the card and the tariff switch independently.
const before = at("2026-09-10T03:59:00Z");
const after = at("2026-09-10T04:00:00Z");
expect(ratesAt("deepseek-flash", before)).toEqual({ inputHit: 0.014, inputMiss: 0.44, output: 1.32 });
expect(ratesAt("deepseek-v4-pro", before)).toEqual({ inputHit: 0.044, inputMiss: 1.32, output: 3.96 });
expect(ratesAt("deepseek-flash", after)).toEqual({ inputHit: 0.003, inputMiss: 0.15, output: 0.6 });
expect(ratesAt("deepseek-v4-pro", before)).toEqual(ratesAt("deepseek-v4-pro", after));
expect(ratesAt("deepseek-v4-pro", after)).toEqual({ inputHit: 0.022, inputMiss: 0.66, output: 1.98 });
});

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