Claude Sonnet 5 (Free)

Name: Claude Sonnet 5 (Free)
Brand: anthropic
SKU: anthropic/claude-sonnet-5-free

anthropic·anthropic/claude-sonnet-5-free·GA·Closed·claude-sonnet series

Everyday Claude agent model for coding, planning, browsing, and general work

Specs & pricing

Input / output per 1M tokens

Reference priceZenMux

$0 / $0

Blended $0 · Cache read $0

Lowest paid

No paid channels

1 more $0 channels

Context

1,000,000

Output limit

128,000

Knowledge cutoff

2026-01-31

Released / updated

2026-06-30 / 2026-06-30

Capabilities

✓ Reasoning✓ Tool use? Structured outputTemperature✓ Attachments

Modalities

TextImagePDF

Available at 1 providers0 with public prices · 1 free

Priced only

Provider	Tier	Input	Output	Cache read	Cache write	Context	Output limit	Status
ZenMux	Gateway	Free		$0	$0	1,000,000	128,000

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 = high

Your usage cost

Input tokens / month

Output tokens / month

Cache hit rate

Common scenarios

This model is $0 across all listed channels (ZenMux).

Price historyone sample accumulated per data sync

Input listOutput listMin blended

Claude Sonnet 5 (Free)

Specs & pricing

Available at 1 providers0 with public prices · 1 free

Reasoning control

Your usage cost

Price historyone sample accumulated per data sync

Related models

Claude Sonnet 5 (Free)

Specs & pricing

Available at 1 providers0 with public prices · 1 free

Reasoning control

Your usage cost

Price historyone sample accumulated per data sync

Related models