Benchmark suiteLatest source data: Oct 15, 2026Checked: October 17, 2026

Claude Sonnet 5.5 xHigh.

A model-level benchmark profile for Claude Sonnet 5.5 xHigh, combining Arena category ranks, suite indexes, commercial price and speed data, SWE-bench status, and lab context.

Lab

Anthropic

Proprietary

Coverage

67%

6 of 9 tracked signals

Best Arena rank

#3

WebDev Arena

Best suite

#5

Coding / 79

Model profile

Benchmark signal map.

This view treats missing values as coverage gaps, then puts every available score, rank, cost, and speed signal into the same visual hierarchy.

Analyst view

Claude Sonnet 5.5 xHigh is strongest on coding.

67% coverage

Its best composite result is rank #5 in the coding view, with a 79 coding index. The strongest raw Arena signal is WebDev Arena at rank #3 with 2,858 public votes.

Best current lane

Coding

#5 / 79 coding index

Strongest raw signal

Code

#3, 1774 score

Commercial posture

$4.00

0.74s first token / 109 tok/s

Coverage gaps

Search ArenaDocument ArenaSWE-bench

Profile completeness

6 of 9 signals matched

67%

Arena categories

3/5

Code, Text, Vision

Commercial match

Live

Claude Sonnet 5.5 (Low, Default Fallback)

SWE-bench

Not listed

No confident software benchmark row

Raw identifier

claude-sonnet-5.5-xhigh

ReasoningCoding

Performance cockpit

Public benchmark scores

Arena rows show score, public rank, confidence interval, vote count, and publish date. Missing rows stay visible as coverage gaps.

Text Arena

Arena category

1,475#36

1467-1483 CI

6,831 votes

Oct 15, 2026

Arena public leaderboard dataset

WebDev Arena

Arena category

1,774#3

1760-1788 CI

2,858 votes

Oct 13, 2026

Arena public leaderboard dataset

Vision Arena

Arena category

1,266#39

1252-1280 CI

2,068 votes

Oct 9, 2026

Arena public leaderboard dataset

Search Arena

Arena category

Not listed

No confident public Arena row for this category.

Coverage gap

Document Arena

Arena category

Not listed

No confident public Arena row for this category.

Coverage gap

SWE-bench Verified

Software issue resolution

Not listed

No confident SWE-bench row matched to this model.

Coverage gap

Cost and speed

Commercial profile

Price, latency, and throughput are only shown when a confident commercial source row is matched.

Blended price

$4.00

USD / 1M tokens

Input price

$2.00

USD / 1M input tokens

Output price

$10.00

USD / 1M output tokens

Latency

0.74s

Median time to first token

Output speed

109 tok/s

Median generation speed

Suite position

Composite ranks by benchmark lens.

These views combine available public signals into purpose-specific indexes. A missing card means the model lacks enough source coverage for that lens.

Lab context

Nearby Anthropic profiles.

Same-lab models make it easier to see whether this profile is a flagship, value play, specialist, or lower-coverage row.

Full lab