DeepSeek V4.1 Flash vs gpt-oss-120b.

model vs model · prices as of

DeepSeek V4.1 Flash takes 2 of 5 rounds against gpt-oss-120b. It is also the cheaper of the two to run, at $0.21 per million tokens against $0.24.

DeepSeekwins 2 rounds

DeepSeek V4.1 Flash

$0.21/M tokens

cheapest we can explain, at TrustedRouter · $0.0304 per 1,000 pages

1M context · tool calling · reads images · open weights

OpenAI

gpt-oss-120b

$0.24/M tokens

cheapest we can explain, at LLM Gateway · $0.0276 per 1,000 pages

131k context · tool calling · open weights

List price in (lower wins)

$0.15/M

$0.15/M

List price out (lower wins)

$0.60/M

$0.60/M

Cheapest we can explain (lower wins)

$0.21/M at TrustedRouter

$0.24/M at LLM Gateway

Standard price (lower wins)

$1.05/M

$1.05/M

Cost per 1,000 pages (lower wins)

$0.0304

$0.0276

Context

1M tokens

131k tokens

Open weights

yes

yes

Tool calling

yes

yes

Structured output

yes

yes

Reads images

yes

no

Reasoning

yes

yes

Released

10 Sept 2026

5 Aug 2025

Providers selling it

61

68

Price we measure against

the maker's own

OpenRouter

Trains on your prompts (no is better)

not stated

not stated

Providers selling both · 29

  • TrustedRouter$0.21 / $0.27
  • Nous Portal$0.91 / $0.26
  • LLM Gateway$1.05 / $0.24
  • DeepInfra$1.20 / $0.28
  • Merge Gateway$1.05 / $0.63
  • FastRouter$1.20 / $0.63
  • OpenRouter$1.05 / $1.05
  • Kilo Gateway$2.10 / $0.26

DeepSeek V4.1 Flash then gpt-oss-120b, per million tokens · showing the 8 cheapest of 29

Go further

Add a third or fourth model, or switch the weighting, in the tool.

What moved in the last seven days

  1. DeepSeek V4.1 FlashDeepSeek$0.30 / $1.20 $0.15 / $0.6050% cheaper ·
  2. DeepSeek V4.1 Flashio.net Intelligence$0.31 / $1.22 $0.28 / $1.0810% cheaper ·
  3. DeepSeek V4.1 FlashDeepSeekDeepSeek's list price, in and out per million tokens$0.30 / $1.20 $0.15 / $0.6050% cheaper ·
  4. DeepSeek V4.1 FlashNous Portal$0.15 / $0.59 $0.13 / $0.5212% cheaper ·
  5. DeepSeek V4.1 FlashOpenRouter$0.30 / $1.20 $0.15 / $0.6050% cheaper ·
  6. DeepSeek V4.1 FlashRelace$0.15 / $0.60 $0.13 / $0.5213% cheaper ·
  7. DeepSeek V4.1 FlashRequesty$0.50 / $1.50 $0.22 / $0.6656% cheaper ·
  8. gpt-oss-120bDeepInfra$0.15 / $0.60 $0.04 / $0.1773% cheaper ·
  9. gpt-oss-120bEden AI$0.17 / $0.75 $0.17 / $0.740.2% cheaper ·
  10. DeepSeek V4.1 FlashNovita$0.30 / $1.20 $0.28 / $1.145% cheaper ·
  11. DeepSeek V4.1 FlashWafer$0.30 / $1.20 $0.20 / $0.6043% cheaper ·
  12. gpt-oss-120bio.net Intelligence$0.18 / $0.68 $0.17 / $0.637% cheaper ·
  13. gpt-oss-120bMancer$20,000 / $160,000 $20,000 / $120,00018% cheaper ·
  14. gpt-oss-120bMancer$0.05 / $0.40 $0.05 / $0.3018% cheaper ·
  15. gpt-oss-120bOpenRouterOpenRouter's list price, in and out per million tokens$0.04 / $0.17 $0.15 / $0.60274% dearer ·
  16. gpt-oss-120bOpenRouter$0.04 / $0.17 $0.15 / $0.60274% dearer ·
  17. gpt-oss-120bRequesty$0.03 / $0.14 $0.15 / $0.60345% dearer ·
  18. DeepSeek V4.1 FlashCharm Hyper$0.33 / $1.31 $0.30 / $1.208% cheaper ·
  19. DeepSeek V4.1 FlashEden AI$0.50 / $1.50 $0.30 / $1.2030% cheaper ·
  20. DeepSeek V4.1 FlashVercel AI Gateway$0.15 / $0.60 $0.30 / $1.20100% dearer ·
  21. DeepSeek V4.1 FlashGMI Cloud$0.30 / $1.20 $0.28 / $1.145% cheaper ·
  22. DeepSeek V4.1 FlashKenari$0.35 / $0.70 $0.01 / $0.0396% cheaper ·
  23. DeepSeek V4.1 FlashTrustedRouter$0.16 / $0.63 $0.04 / $0.0881% cheaper ·
  24. gpt-oss-120bCharm Hyper$0.17 / $0.66 $0.18 / $0.684% dearer ·
  25. gpt-oss-120bDigitalOcean Gradient$0.06 / $0.39 $0.06 / $0.429% dearer ·
  26. gpt-oss-120bNous Portal$0.02 / $0.14 $0.03 / $0.1725% dearer ·

Frequently asked

Which is cheaper, DeepSeek V4.1 Flash or gpt-oss-120b?
DeepSeek V4.1 Flash, at $0.21 per million tokens against $0.24 for gpt-oss-120b, three parts input to one part output, read on 19 Sept 2026.
Where is each one cheapest?
DeepSeek V4.1 Flash: $0.21 at TrustedRouter. gpt-oss-120b: $0.24 at LLM Gateway.
Can I buy both from one provider?
Yes. 29 providers sell both: TrustedRouter, Nous Portal, LLM Gateway, DeepInfra, Merge Gateway, FastRouter, and more. The cheapest of them for the two together is TrustedRouter.
Which holds more context?
DeepSeek V4.1 Flash, at 1M tokens against 131k.

Prices exclude tax and are per million tokens, read 19 Sept 2026 from each provider's own catalog. The standard price blends three parts input to one part output; a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.

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