claude-fable-5.1 vs gpt-5.6-terra
Both can be used on onomeo. Everything below comes from calls made through this site.
- claude-fable-5.1
- 1 advantage
- gpt-5.6-terra
- 3 advantages
How to choose
claude-fable-5.1Steadier this week: 100% of tests passed
gpt-5.6-terraCheaper: about $0.0011 a reply, 94% lessFaster: 1.5s on averageHigher in this week's ranking: #42
claude-fable-5.1
By AnthropicNew this week
gpt-5.6-terra
By OpenAI
Where they differ
claude-fable-5.1gpt-5.6-terra
On this site
100%3 testsAvailability, this week's tests87%8 tests
3.4sAverage response this week1.5s
$0.018Price per reply$0.0011
#48Place in this week's ranking#42
$216.67Price per million characters$33.33
The model itself
1M tokensContext length1.1M tokens
Jun 2026Knowledge cutoffFeb 2026
1 Sep 2026Released9 Jul 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-fable-5.1 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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.