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deepseek-v4-pro vs gpt-oss-20b

Both can be used on onomeo. Everything below comes from calls made through this site.

deepseek-v4-pro
1 advantage
gpt-oss-20b
4 advantages

How to choose

deepseek-v4-proLonger context: 1M tokens
gpt-oss-20bSteadier: 99% up over 3 daysSteadier this week: 98% of tests passedFaster: 1.2s on averageHigher in this week's ranking: #4

deepseek-v4-pro

By DeepSeek

gpt-oss-20b

By OpenAI

Where they differ

deepseek-v4-progpt-oss-20b
On this site
86%121 callsAvailability, last 3 days99%115 calls
87%327 testsAvailability, this week's tests98%204 tests
1.6sAverage response this week1.2s
#12Place in this week's ranking#4
The model itself
1M tokensContext length128K tokens
384K tokensLongest reply32K tokens
The provider does not say.Conversations used for trainingUsed to train and improve the provider’s models.
May 2025Knowledge cutoffJun 2024
24 Apr 2026Released5 Aug 2025

Where they match

  • Price per replyFree
  • Reads imagesNo
  • Calls toolsYes
  • Thinks before answeringYes
  • Open weightsYes

Availability over 3 days counts every call made through the site; this week's availability counts every call over the last 7 days, scheduled tests included, and response time comes from the site's own scheduled tests. Free models are counted in calls; big models are charged by usage, in US dollars.

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Figures come from real calls made through this site. Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.