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VerdictPal · editorial desk · updated 16 Oct 2026VerdictPal
Compare · Two models, head-to-head

Pick two models. See the diff.

Composite scores, benchmark ranks, capability grids, and pricing per million tokens. All sourced from the same data that powers the model atlas.
ToolsModels

Claude Sonnet 5.5 vs Claude Sonnet 5

Claude Sonnet 5.51stats won
Tied3stats
Claude Sonnet 52stats won
Spec showdown

Capacity, price, freshness.

Claude Sonnet 5.5vsClaude Sonnet 5

Claude Sonnet 5 leads on composite score (69 vs 0), with deeper benchmark coverage across more families.

  1. Composite score
    Claude Sonnet 5.50Claude Sonnet 569Winner on this row
  2. Benchmark mix
    Claude Sonnet 5.50Claude Sonnet 569Winner on this row
  3. Context window
    Claude Sonnet 5.51MClaude Sonnet 51M
  4. Max output
    Claude Sonnet 5.5128KClaude Sonnet 5128K
  5. Input price / 1M (lower wins)
    Claude Sonnet 5.5$2.0Claude Sonnet 5$2.0
  6. Output speed (AA default API)
    Claude Sonnet 5.5135 t/sWinner on this rowClaude Sonnet 579 t/s
Composite score
0
vs
69Winner on this row
Benchmark mix
0
vs
69Winner on this row
Context window
1M
vs
1M
Max output
128K
vs
128K
Input price / 1M (lower wins)
$2.0
vs
$2.0
Output speed (AA default API)
135 t/sWinner on this row
vs
79 t/s
Capability grid

What each model can do.

Modalities

Claude Sonnet 5.5Claude Sonnet 5
Text●●
Image●●
Audio——
Video——
Code●●
Tool use●●
Reasoning●●

Access

Claude Sonnet 5.5Claude Sonnet 5
API●●
Consumer app●●
Open weights——
Managed cloud●●
On-device——
Family profile

Top score per benchmark family.

No shared benchmark families between these two models.

Benchmark ranks

Every shared benchmark, side by side.

Performance

AA output speed#34/195 · #81/195
135 t/sWinner on this row
vs
79 t/s
Dossier facts

Dates, sources, fineprint.

Claude Sonnet 5.5Claude Sonnet 5
ProviderAnthropicAnthropic
FamilyClaude SonnetClaude Sonnet
Release date2026-09-282026-06-30
Knowledge cutoffJun 2026Jan 2026
Context window1M1M
Max output128K128K
Input price /1M$2.0$2.0
Output price /1M$10$10
Statusflagshipsolid
Composite score069
Intelligence score069
Intel sourcenonecomposite
Benchmark rows16
Source count11
Freshnessfreshfresh
Pricing checked2026-09-282026-09-28
Ecosystem

Which tools wrap each model.

Verdict

Which model to actually pick.

Claude Sonnet 5 leads on composite score (69 vs 0), with deeper benchmark coverage across more families.

Open Claude Sonnet 5.5's dossierOpen Claude Sonnet 5's dossier

Questions this comparison answers

Every answer below is assembled from the dated fields on this page. Nothing is written separately for search.

Should you use Claude Sonnet 5.5 or Claude Sonnet 5?

Claude Sonnet 5 leads on composite score (69 vs 0), with deeper benchmark coverage across more families.

Is Claude Sonnet 5.5 or Claude Sonnet 5 cheaper?

Claude Sonnet 5.5: $2.0 / $10. Claude Sonnet 5: $2.0 / $10.

How do the Claude Sonnet 5.5 and Claude Sonnet 5 context windows compare?

Claude Sonnet 5.5: 1M. Claude Sonnet 5: 1M.