Normie ModeModels · Anthropic
Claude Opus 5.5
Anthropic's Claude model, released 23 Sept 2026.
Top three for
5 tasks, including planning and personal admin, translation and languages, writing.
Evidence
Early results. 2 independent results so far.
Cost
$22 per 1,000 typical requests, if you use it directly.
Reads at once
1,500 pages of about 500 words.
Where you can use it
The apps and plans that include it, cheapest first.
| App and plan | Price | Access |
|---|---|---|
| Claude Pro | $20/month $17 a month if paid yearly | Included, the default |
| Claude Max | $100/month From $100 a month; a $200 tier has four times the usage | Included, the default |
Where it ranks, task by task
Its place on each task's score, among the models we compare that have enough results to score.
| Task | Position | Task score |
|---|---|---|
| Best AI for planning and personal admin | 1st of 14 | 100 |
| Best AI for translation and languages | 1st of 14 | 100 |
| Best AI for writing | 1st of 14 | 100 |
| Best AI for health questions | 1st of 14 | 100 |
| Best AI for CVs, job applications and interviews | 1st of 14 | 100 |
Test results
Every test we use that has a result for this exact version.
| Test | Result | Position |
|---|---|---|
| People's votes on business and finance questions LMArena | rating 1506 | 1st of 14 |
| People's votes on coding questions LMArena | rating 1545 | 1st of 14 |
| People's votes on back-and-forth conversations LMArena | rating 1520 | 1st of 14 |
| People's votes on creative writing LMArena | rating 1538 | 1st of 14 |
| People's votes on expert questions LMArena | rating 1564 | 1st of 14 |
| People's votes on following instructions LMArena | rating 1535 | 1st of 14 |
| People's votes on long, detailed requests LMArena | rating 1540 | 1st of 14 |
| People's votes on questions in other languages LMArena | rating 1513 | 1st of 14 |
| People's votes overall LMArena | rating 1518 | 1st of 14 |
| People's votes on science questions LMArena | rating 1540 | 1st of 14 |
| People's votes on writing and language LMArena | rating 1535 | 1st of 14 |
| People's votes on legal questions LMArena | rating 1511 | 2nd of 14 |
| Answering business questions from a spreadsheetTested by us Normie Mode | 30/30 | 1st of 6 |
What the maker says
- “It performs at the level of Claude Fable 5.1 on most work and costs 40% less to run than Opus 5.”Anthropic · 23 Sept 2026The maker says
Details
- Maker
- Anthropic
- Released
- 23 Sept 2026
- Status
- Current
- Replaces
- Claude Opus 5
- Name checked
- Confirmed with Anthropic