claude-sonnet-5.5 vs gpt-6-astra
Both can be used on onomeo. Everything below comes from calls made through this site.
- claude-sonnet-5.5
- 4 advantages
- gpt-6-astra
- No edge in the figures
How to choose
claude-sonnet-5.5Cheaper: about $0.0037 a reply, 90% lessSteadier this week: 100% of tests passedFaster: 1.5s on averageHigher in this week's ranking: #43
gpt-6-astraNo edge in the figures
claude-sonnet-5.5
By AnthropicNew this week
gpt-6-astra
By OpenAI
Where they differ
claude-sonnet-5.5gpt-6-astra
On this site
—Availability, last 3 days100%6 calls
100%3 testsAvailability, this week's tests95%21 tests
1.5sAverage response this week2.7s
$0.0037Price per reply$0.037
#43Place in this week's ranking#46
$50.00Price per million characters$88.33
The model itself
1M tokensContext length1.1M tokens
Jun 2026Knowledge cutoffApr 2026
28 Sep 2026Released4 Sep 2026
Where they match
- Longest reply128K tokens
- 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. Free models are counted in calls; big models are charged by usage, in US dollars.
Compare next
claude-sonnet-5.5 against other models
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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.