claude-fable-5.1 vs gpt-6-astra
Both can be used on onomeo. Everything below comes from calls made through this site.
- claude-fable-5.1
- 2 advantages
- gpt-6-astra
- 2 advantages
How to choose
claude-fable-5.1Cheaper: about $0.018 a reply, 51% lessSteadier this week: 100% of tests passed
gpt-6-astraFaster: 2.7s on averageHigher in this week's ranking: #46
claude-fable-5.1
By AnthropicNew this week
gpt-6-astra
By OpenAI
Where they differ
claude-fable-5.1gpt-6-astra
On this site
—Availability, last 3 days100%6 calls
100%3 testsAvailability, this week's tests95%21 tests
3.4sAverage response this week2.7s
$0.018Price per reply$0.037
#48Place in this week's ranking#46
$216.67Price per million characters$88.33
The model itself
1M tokensContext length1.1M tokens
Jun 2026Knowledge cutoffApr 2026
1 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-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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.