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gemini-4-argon vs gpt-5.6-luna

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

gemini-4-argon
No edge in the figures
gpt-5.6-luna
No edge in the figures

How to choose

The figures from this site show no clear difference between the two yet.

gemini-4-argon

By Google

gpt-5.6-luna

By OpenAI

Where they differ

gemini-4-argongpt-5.6-luna
On this site
$15.00Reference price per million output tokens$1.80
$3.00Reference price per million input tokens$0.30
The model itself
1M tokensContext length1.1M tokens
64K tokensLongest reply128K tokens
Mar 2026Knowledge cutoffFeb 2026
13 Oct 2026Released9 Jul 2026
$0.15Reference price per million cache-read tokens$0.03

Where they match

  • Place in this week's rankingUnranked
  • Reads imagesYes
  • Calls toolsYes
  • Thinks before answeringYes
  • Conversations used for trainingUsed to train and improve the provider’s models
  • Open weightsNo

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. Models marked as free are counted in calls; paid 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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.