Claude Opus Latest
Compatibility alias that routes to the newest version of Claude Opus. Currently routes to Claude Opus 5.5.
- Reasoning
- Vision
- Native PDF input
- Tool Calling
- Structured Output
Added Mar 29, 2026
Pricing
Auto routing · per 1M tokens- Input
- $4.00
- Output
- $20.00
- Cache read
- $0.20
Specifications
- Context window
- 1M
- Max output
- 128K
Benchmarks
Benchmarks
Sourced from LMArena.
Arena Score
1505.7
Overall Rank
#4 / 420
Votes
14,815
Confidence Interval
1499.6 - 1511.8
Category Scores
Coding
#10 / 415
3,257 votes
1546.0
Math
#6 / 404
725 votes
1518.3
Longer Query
#5 / 398
6,431 votes
1519.9
Creative Writing
#3 / 418
3,562 votes
1516.8
Instruction Following
#3 / 420
5,117 votes
1518.5
Hard Prompts
#5 / 420
9,288 votes
1530.1
Additional Categories22
Korean
#1 / 288
227 votes
1490.6
Chinese
#3 / 394
1,288 votes
1568.3
Industry Entertainment And Sports And Media
#3 / 418
4,030 votes
1495.6
Industry Writing And Literature And Language
#3 / 419
4,535 votes
1516.8
Japanese
#3 / 288
237 votes
1530.1
English
#4 / 420
5,486 votes
1513.6
Exclude Ties
#4 / 420
11,114 votes
1524.6
Industry Mathematical
#4 / 401
819 votes
1525.7
Expert
#5 / 370
1,468 votes
1543.2
Hard Prompts English
#5 / 418
3,497 votes
1533.5
Non English
#5 / 420
9,323 votes
1494.2
Russian
#7 / 384
2,133 votes
1512.8
German
#8 / 320
214 votes
1506.0
Industry Life And Physical And Social Science
#8 / 418
2,458 votes
1520.5
Industry Software And It Services
#8 / 420
5,017 votes
1532.7
Spanish
#8 / 303
496 votes
1492.7
Industry Legal And Government
#9 / 392
1,204 votes
1508.2
Industry Business And Management And Financial Operations
#10 / 413
2,611 votes
1494.5
Multi Turn
#12 / 418
2,034 votes
1499.9
Polish
#13 / 244
196 votes
1501.1
Industry Medicine And Healthcare
#15 / 390
993 votes
1509.3
French
#29 / 300
512 votes
1496.1
Published 2026-11-08 · Matched as Claude Opus 5.5 (High)
LMArena DatasetProviders
Auto routing is available for this model. Explicit provider selection is not available.
| Cache write /M | ||||||
|---|---|---|---|---|---|---|
Recommended | $4.00 | $20.00 | $0.20 | $5.00 | N/A | N/A |