claude-haiku-4.5 vs claude-opus-5.5
Both run on onomeo with free credits. Everything below comes from calls made through this site.
- claude-haiku-4.5
- 3 advantages
- claude-opus-5.5
- 2 advantages
How to choose
claude-haiku-4.5Cheaper: about 175 a reply, 97% lessSteadier this week: 100% of tests passedHigher in this week's ranking: #41
claude-opus-5.5Faster: 1.4s on averageLonger context: 1M tokens
claude-haiku-4.5
By Anthropic
claude-opus-5.5
By Anthropic
Where they differ
claude-haiku-4.5claude-opus-5.5
On this site
—Availability, last 3 days57%7 calls
100%10 testsAvailability, this week's tests66%9 tests
2.0sAverage response this week1.4s
175Credits per reply6,732
~288Replies a day's check-in buys~29
#41Place in this week's ranking#47
3×Credit multiplier15×
The model itself
200K tokensContext length1M tokens
64K tokensLongest reply128K tokens
Feb 2025Knowledge cutoffJun 2026
15 Oct 2025Released22 Sep 2026
Where they match
- 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. Replies a day assumes a full daily check-in and the daily call limit.
Compare next
claude-haiku-4.5 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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.