HyperFlowSI
All models
Anthropic
Anthropic

Claude Sonnet 5.5

Modalities
anthropic/claude-sonnet-5.5
Released: Sep 28, 2026
Anthropic's best combination of speed and intelligence. 1M context, 128K output with adaptive thinking (always on), computer use, vision, and prompt caching.
Context
1M tokens
Input / 1M
$0.8798
Output / 1M
$4.40
Cache read / 1M
$0.10
Cache write / 1M
$2.50

Offers

1 seller
Surplus Intelligence
Price
In$0.8798Out$4.40
Discount
0%
Latency
—
Seller
Price
Discount
Latency
Surplus Intelligence
In$0.8798Out$4.40
0%—

Usage · 30D

No usage yet

Get started

curl https://www.boardblackex.work/v1/chat/completions \
  -H "Authorization: Bearer $HYPERFLOW_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-5.5",
    "messages": [{ "role": "user", "content": "Hello!" }]
  }'
Get an API key