Anthropic · language model

Claude Sonnet 5.5

Name: Claude Sonnet 5.5
Brand: Anthropic
SKU: anthropic/claude-sonnet-5.5
Price: 4 USD
Availability: InStock

Anthropic: Claude Sonnet 5.5 is a language model on the Overblast AI Gateway. Call it as anthropic/claude-sonnet-5.5 with one Overblast API key, paid from your AI credits.

Get an API key All language models and prices

Prices are final: what a call costs in AI credits, in US dollars. As of 2 October 2026, from the live catalogue.

Price

Anthropic: Claude Sonnet 5.5: price
Input, per M tokens	$4.00
Output, per M tokens	$20.00

What it does

Anthropic: Claude Sonnet 5.5: what it does
Does	Chat completions, Messages (Claude Code), Responses (Codex)

Where it runs

Anthropic: Claude Sonnet 5.5: where it runs
Regions	Can be pinned to EU and US, or run globally
Zero data retention	Yes: served only by endpoints that keep neither the prompt nor the answer
Context	1,000,000 tokens
Endpoint	`POST /v1/chat/completions`

Call it

curl https://ai.overblast.app/v1/chat/completions \
  -H "Authorization: Bearer $OVERBLAST_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-5.5",
    "messages": [
      {
        "role": "user",
        "content": "Say hello in Estonian"
      }
    ]
  }'

Aliases that pick it today

These aliases resolve to this model right now. An alias can move to another model as the catalogue changes.

auto/coding (Auto: coding)
auto/media (Auto: media agent)
auto/image (Auto: image agent)
auto/audio (Auto: speech agent)
auto/files (Auto: file agent)
auto/avatar (Auto: avatar agent)

All language models and their prices · How the AI Gateway works