claude-opus-5.5 vs gpt-6.1-sol
Both can be used on onomeo. Everything below comes from calls made through this site.
- claude-opus-5.5
- 1 advantage
- gpt-6.1-sol
- 3 advantages
How to choose
claude-opus-5.5Faster: 1.8s on average
gpt-6.1-solCheaper: about $0.0023 a reply, 95% lessSteadier this week: 100% of tests passedHigher in this week's ranking: #45
claude-opus-5.5
By Anthropic
gpt-6.1-sol
By OpenAINew this week
Where they differ
claude-opus-5.5gpt-6.1-sol
On this site
100%21 callsAvailability, last 3 days—
97%43 testsAvailability, this week's tests100%4 tests
1.8sAverage response this week3.1s
$0.044Price per reply$0.0023
#47Place in this week's ranking#45
$98.33Price per million characters$53.33
The model itself
1M tokensContext length1.1M tokens
Jun 2026Knowledge cutoffApr 2026
22 Sep 2026Released29 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-opus-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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.