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claude-sonnet-5.5 vs glm-5.3

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

claude-sonnet-5.5
4 advantages
glm-5.3
2 advantages

How to choose

claude-sonnet-5.5Cheaper: about $0.0037 a reply, 49% lessSteadier this week: 100% of tests passedFaster: 1.5s on averageReads images
glm-5.3Higher in this week's ranking: #41Open weights

claude-sonnet-5.5

By AnthropicNew this week

glm-5.3

By Zhipu AI

Where they differ

claude-sonnet-5.5glm-5.3
On this site
100%3 testsAvailability, this week's tests91%12 tests
1.5sAverage response this week5.7s
$0.0037Price per reply$0.0073
#43Place in this week's ranking#41
$50.00Price per million characters$11.67
The model itself
YesReads imagesNo
Jun 2026Knowledge cutoffNot published
28 Sep 2026Released14 Aug 2026
NoOpen weightsYes

Where they match

  • Context length1M tokens
  • Longest reply128K tokens
  • Calls toolsYes
  • Thinks before answeringYes
  • Conversations used for trainingUsed to train and improve the provider’s models

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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.