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Anthropic Claude Sonnet 5.5

anthropic·anthropic/anthropic-claude-sonnet-5.5·GA·Closed·claude-sonnet series·NEW
Fast Claude model for everyday coding, agents, and knowledge work

Specs & pricing

Input / output per 1M tokens
Reference price·DigitalOcean
$2.00 / $10.00
Blended $4.00 · Cache read $0.20
Lowest paid·DigitalOceanCloud
$2.00 / $10.00
Blended $4.00
Context
1,000,000
Output limit
128,000
Knowledge cutoff
2026-06
Released / updated
2026-09-28 / 2026-09-28
Capabilities
✓ Reasoning✓ Tool use? Structured outputTemperature✓ Attachments
Modalities
TextImage

Available at 1 providers1 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
DigitalOceanCloud$2.00$10.00$0.20$2.501,000,000128,000

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = loweffort = mediumeffort = higheffort = xhigheffort = max

Your usage cost

1DigitalOcean$684.00
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input list $2.00Output list $10.00Min blended $4.00

Price history accumulates from each data sync; currently only 1 sample(s) (2026-09-29). Each future sync adds a point, and once accumulated a line is drawn here.

Related models

Claude Sonnet 5.5same series$2.00 / $10.00Claude Sonnet 5.5 (EU)same series$2.20 / $11.00Claude Sonnet Latestsame series$2.00 / $10.00GLM-5.2cheaper alternative$1.40 / $4.40GLM-5.3cheaper alternative$1.40 / $4.40GLM-5.3-Flashcheaper alternative$0.15 / $0.50DeepSeek V4.1 Flashcheaper alternative$0.15 / $0.60
Data partly from models.dev (MIT) · DigitalOcean official docs ↗