Anthropic · tested in Taskade Genesis
Claude Sonnet 4.5 in Taskade
Claude Sonnet 4.5 from Anthropic is no longer in the Taskade model menu. Its test results stay on this page. We last tested it on Oct 8, 2026 in TSK-1, our app-building test.
- Status
- Retired
- Last test
- Context window
- 200Ktokens
- Max output
- 64Ktokens
- Released
- Knowledge cutoff
- Where it runs
- 4services
TSK-1 scorecard for the Claude family
TSK Score
Claude family, across real apps made in Taskade Genesis
- Interfaceready to share
- Strong
- Taskcompletes your task
- Strong
- Memorykeeps your data
- Emerging
- Adapthandles follow-up edits
- Leading
An older Claude, tested in October.
MoreLess
Its match tracker rejected every logged match and read every sample match as a loss, while its family intake form saved every answer and both photos.
Published scores
Benchmark scores that Anthropic and test sites published for Claude Sonnet 4.5. Taskade did not re-run them. Lab-reported marks a score from Anthropic itself.
| Benchmark | Score | Source |
|---|---|---|
| SWE-Bench Proresolve rate · publicScale AI | 43.6% | Scale AI |
LMArena scores
| Benchmark | Score | Source |
|---|---|---|
| Text arena±3 · 82,688 votes · Rank 70 of 416 · LMArena | 1,455 | LMArena |
| WebDev arena±7 · 15,724 votes · Rank 101 of 145 · LMArena | 1,385 | LMArena |
Scores from the LMArena leaderboard dataset (CC BY 4.0). People vote between two answers, and the votes set the score. Taskade picked the Overall category and the default setting of each model.
Scores collected by models.dev (MIT). Each source links the page that published the score.
Versions tested
Open a version to read its findings.
Claude Sonnet 4.5Tested Oct 20262 findings
An older Claude, tested in October. Its match tracker rejected every logged match and read every sample match as a loss, while its family intake form saved every answer and both photos.
Built the family intake form so it saved every answer and both photos, in a plain look with little of the warm pastel the request asked for. Its open teacher page listed parent phone numbers.
Built a Dota 2 match tracker that rejected every logged match and showed every sample match as a loss, so the dashboard read a 0% win rate.
Results by task
Model facts
The token limits are the most the model accepts. Taskade can run it with lower limits.
- Last updated
- Input types
- Text, Images, PDF
- Output types
- Text
- Reasoning
- Yes
- Tool calling
- Yes
- File attachments
- Yes
- Structured output
- Yes
- Open weights
- No
Published specs from the model maker, via models.dev (MIT).
Where it runs
Services outside Taskade that serve Claude Sonnet 4.5, from models.dev. Each link opens in a new tab.
What to pick instead
- Leave TSK-Auto on, and Taskade picks a current model for each request.
- To pick a model yourself, choose one from the model menu.
- To compare, open the models page and read the test results of the current models.
Where Claude ranks
TSK Score out of 100.
Compare Claude
Other Anthropic models
FAQ
Can I still pick Claude Sonnet 4.5 in Taskade?
No. Claude Sonnet 4.5 is no longer in the Taskade model menu. TSK-Auto picks a current model for each request. The models page lists the models you can pick now.
Has Taskade tested Claude Sonnet 4.5?
Yes. We last tested Claude Sonnet 4.5 on Oct 8, 2026 in the TSK-1 Benchmark. An older Claude, tested in October. Its match tracker rejected every logged match and read every sample match as a loss, while its family intake form saved every answer and both photos.
Who makes Claude Sonnet 4.5?
Anthropic makes Claude Sonnet 4.5. Taskade runs frontier models from top AI labs.