claude-opus-5.5 vs step-3.7-flash:free
Both run on onomeo with free credits. Everything below comes from calls made through this site.
- claude-opus-5.5
- 2 advantages
- step-3.7-flash:free
- 5 advantages
How to choose
claude-opus-5.5Faster: 1.4s on averageLonger context: 1M tokens
step-3.7-flash:freeCheaper: about 43 a reply, 99% lessSteadier: 100% up over 3 daysSteadier this week: 100% of tests passedHigher in this week's ranking: #7Open weights
claude-opus-5.5
By AnthropicNew this week
step-3.7-flash:free
By StepFun
Where they differ
claude-opus-5.5step-3.7-flash:free
On this site
57%7 callsAvailability, last 3 days100%57 calls
66%9 testsAvailability, this week's tests100%70 tests
1.4sAverage response this week2.1s
6,732Credits per reply43
~29Replies a day's check-in buys~288
#47Place in this week's ranking#7
15×Credit multiplier1×
The model itself
1M tokensContext length256K tokens
128K tokensLongest reply256K tokens
Used to train and improve the provider’s models.Conversations used for trainingThe provider does not say.
Jun 2026Knowledge cutoffMar 2026
22 Sep 2026Released29 May 2026
NoOpen weightsYes
Where they match
- Reads imagesYes
- Calls toolsYes
- Thinks before answeringYes
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. Replies a day assumes a full daily check-in and the daily call limit.
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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.