MODELS / OPENAI

GPT-5.5

GPT‑5.5 understands what you're trying to do faster and can carry more of the work itself. It excels at writing and debugging code, researching online, analyzing data, creating documents and spreadsheets, operating software, and moving across tools until a task is finished.

TEXTREASONING
1M
CONTEXT WINDOW
128K
MAX OUTPUT TOKENS
$5 / 1M tokens
INPUT PRICE
$30 / 1M tokens
OUTPUT PRICE
QUICKSTART

Call it in one request.

OpenAI-compatible — change the base URL, and the setup is complete.

SHELL
curl https://enterprise.blackbox.ai/v1/chat/completions \
  -H "Authorization: Bearer $BLACKBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "blackboxai/openai/gpt-5.5",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
INPUT: text, image, fileOUTPUT: textRELEASED: 2026-04-24REGIONS: US, EU, APAC
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