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DeepSeek
The deepseek-flash API name currently serves DeepSeek V4.1 Flash. It supports images, text, tool calls, and both thinking and non-thinking modes. This is a moving API alias, so older prices can refer to an earlier version.
From provider documentation. Reviewed September 18, 2026.
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DeepSeek
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OpenAI
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Estimates use tracked list rates. They are not actual charges or a billing commitment. Taxes, tool fees, negotiated rates and provider-specific limits may differ. Provider sign-in is required to buy credits.
DeepSeek charges peak and off-peak rates; off-peak is half price. Sources may report different schedules. A difference between sources is not necessarily a price change.
Hover, tap, or use the day slider to inspect prices.
Dots mark documented effective dates. Dashed lines infer continuity between known events; they are not daily observations. Uncertain changes and retirements break the line. Lines stop at the last dated price evidence. Choose a live-check source for later observations; see the timeline below for citations. All dates are UTC.
| Date (UTC) | Input | Output | Evidence |
|---|---|---|---|
| 2026-09-10 | $0.15 | $0.6 | Documented date |
| 2026-09-11 | Not observed | Not observed | No evidence |
| 2026-09-12 | Not observed | Not observed | No evidence |
| 2026-09-13 | Not observed | Not observed | No evidence |
| 2026-09-14 | Not observed | Not observed | No evidence |
| 2026-09-15 | Not observed | Not observed | No evidence |
| 2026-09-16 | Not observed | Not observed | No evidence |
| 2026-09-17 | Not observed | Not observed | No evidence |
| 2026-09-18 | Not observed | Not observed | No evidence |
| 2026-09-19 | Not observed | Not observed | No evidence |
| 2026-09-20 | Not observed | Not observed | No evidence |
| 2026-09-21 | Not observed | Not observed | No evidence |
| 2026-09-22 | Not observed | Not observed | No evidence |
| 2026-09-23 | Not observed | Not observed | No evidence |
| 2026-09-24 | Not observed | Not observed | No evidence |
| 2026-09-25 | Not observed | Not observed | No evidence |
| 2026-09-26 | Not observed | Not observed | No evidence |
| 2026-09-27 | Not observed | Not observed | No evidence |
| 2026-09-28 | Not observed | Not observed | No evidence |
| 2026-09-29 | Not observed | Not observed | No evidence |
These are the earliest and latest successful checks we can prove from our retained polling records. Reconstructing an older price never moves these timestamps backward.
A baseline of these monitoring records was preserved on . The current checks below may be newer.
| Source | First proven live check (UTC) | Latest proven live check (UTC) |
|---|---|---|
| models-dev | ||
| litellm | ||
| deepseek-direct |
A reconstruction from dated sources. The effective date, publication date, and date we added the evidence are recorded separately. Coverage is incomplete; an absent event does not prove nothing changed.
V4.1-Flash launches under deepseek-flash, with tariff effective September 10 at 04:00 UTC. Conditions: peak: 01:00-04:00 and 06:00-10:00 UTC weekdays; effective 04:00 UTC.
USD / 1M tokens: input $0.3 · output $1.2 · cached input $0.006
Published 2026-09-10 · Added to our history
Results depend on reasoning effort, tools, and evaluation setup. Check the original report before comparing scores across models.
No benchmark scores in our tracked feed for this exact model yet. This does not mean the model scored zero.
Each source has its own history. We don’t join conflicting sources into a single price trend. Standard input prices exclude cache discounts.
V4.1-Flash launches under deepseek-flash, with tariff effective September 10 at 04:00 UTC. Conditions: off-peak: all other times including weekends and public holidays; effective 04:00 UTC.
USD / 1M tokens: input $0.15 · output $0.6 · cached input $0.003
Published 2026-09-10 · Added to our history