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claude-sonnet-5 vs deepseek-flash

claude-sonnet-5 is paused.A paused model is switched off for now and cannot be called. Its figures below are the latest this site has for it.

claude-sonnet-5
1 advantage
deepseek-flash
1 advantage

How to choose

claude-sonnet-5Cheaper: about $0.004 a reply, 27% less
deepseek-flashOpen weights

claude-sonnet-5

By Anthropic

Use in chatDetails

deepseek-flash

By DeepSeekNew this week

Where they differ

claude-sonnet-5deepseek-flash
On this site
—Availability, last 3 days100%656 calls
—Availability, this week's tests100%660 tests
—Average response this week0.7s
$0.004Price per reply$0.0055
UnrankedPlace in this week's ranking#2
$15.00Price per million characters—
The model itself
128K tokensLongest reply384K tokens
Jan 2026Knowledge cutoffMay 2025
30 Jun 2026Released10 Sep 2026
NoOpen weightsYes

Where they match

  • Context length1M tokens
  • Reads imagesYes
  • Calls toolsYes
  • Thinks before answeringYes
  • Conversations used for trainingUsed to train and improve the provider’s models

Availability over 3 days counts every call made through the site; this week's availability counts every call over the last 7 days, scheduled tests included, and response time comes from the site's own scheduled tests. Free models are counted in calls; big models are charged by usage, in US dollars.

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Figures come from real calls made through this site. Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.