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Claude 5.5

Score basis

Claude 5.5 is capable in long context, factuality, and reasoning; and behind the leaders in agentic tasks. Too few results yet to rate coding, safety, math, multimodal tasks, multilingual tasks, or instruction following.

Capability profile

Bars show the model's median result as a share of the leading model's, per capability. Select a row to see its results.

Capable3 capabilities
  1. Long Context−17.1%1 of 3
  2. Factuality−19.6%2 of 4
  3. Reasoning−23.1%2 of 6
Limited1 capability
  1. Agentic−29.8%2 of 7
Not rated6 capabilities

Too few results yet to rate Coding, Safety, Math, Multimodal, Multilingual or Instruction Following.

Price

$2.00input$10.00outputper million tokens

From Artificial Analysis · All prices

Costs more than 82% of 330 priced models · 3:1 input-to-output blend, log scale

Evidence

10results on10benchmarks

  • 10 aggregator

From 1 source · latest Oct 8, 2026 · How verification works

Claude 5.5 benchmark results

10 results on 10 benchmarks, grouped by capability. Each bar is the result as a share of the capability leader's; every result links to its source.

Long Context

CapableFull long context ranking

17.1% behind the leader1 of 3 ranked benchmarks measured

Factuality

CapableFull factuality ranking

19.6% behind the leader2 of 4 ranked benchmarks measured

Reasoning

CapableFull reasoning ranking

23.1% behind the leader2 of 6 ranked benchmarks measured

Agentic

LimitedFull agentic ranking

29.8% behind the leader2 of 7 ranked benchmarks measured

Coding

Not enough dataFull coding ranking

0 of 10 ranked benchmarks measured

More results

Benchmarks outside the capability baskets. They are not ranked against a leader.

Claude 5.5: common questions

Who makes Claude 5.5?

Claude 5.5 is made by Anthropic.

When was Claude 5.5 released?

Claude 5.5 was released on Sep 28, 2026, according to Artificial Analysis.

What is Claude 5.5 good at?

Claude 5.5 is capable in long context, factuality, and reasoning; and behind the leaders in agentic tasks. Too few results yet to rate coding, safety, math, multimodal tasks, multilingual tasks, or instruction following.

How much does Claude 5.5 cost?

Claude 5.5 costs $2.00 per million input tokens and $10.00 per million output tokens, according to Artificial Analysis. At a mix of three input tokens to one output token, it costs more than 82% of the 330 priced models we track.

How many benchmarks has Claude 5.5 been tested on?

We track 10 results for Claude 5.5 on 10 benchmarks from 1 source. The latest was recorded on Oct 8, 2026.

About this record

Where Claude 5.5's numbers come from, and every name it appears under.

Tracked since
Sep 23, 2026
Newest source mention
Oct 4, 2026

Where the results come from

Verification: 10 scores · 0 independently verified · 10 aggregator-attributed. How these tiers are assigned

From 1 source on 1 site. Artificial Analysis supplies all of them. Bars are coloured by trust tier.

  • artificialanalysis.ai10

Also known as

claude sonnet 5.5 (medium, default fallback)