MODELS / OPENAI

o4-mini (Fast)

OpenAI's o4-mini delivers fast, cost-efficient reasoning with exceptional performance for its size, particularly excelling in math (best-performing on AIME benchmarks), coding, and visual tasks.

TEXTREASONINGFILE-INPUTIMPLICIT-CACHINGREASONINGTOOL-USEVISIONWEB-SEARCHFAST
200K
CONTEXT WINDOW
100K
MAX OUTPUT TOKENS
$2
INPUT PRICE / 1M TOKENS
$8
OUTPUT PRICE / 1M TOKENS
QUICKSTART

Call it in one request.

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

curl https://enterprise.blackbox.ai/v1/chat/completions \
  -H "Authorization: Bearer $BLACKBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "blackboxai/openai/o4-mini-fast",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything o4-mini (Fast) supports, in one table.

MODEL ID
blackboxai/openai/o4-mini-fast
DEVELOPED BY
OpenAI
MODEL TYPE
Text
RELEASED
Apr 16, 2025
CONTEXT WINDOW
200K
MAX OUTPUT TOKENS
100K
INPUT MODALITIES
text, image, pdf
OUTPUT MODALITIES
text
INPUT PRICE
$2 / 1M tokens
OUTPUT PRICE
$8 / 1M tokens
CACHE READ
$0.5 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Not available (closed-weight model)
SUPPORTED PARAMETERS
max_tokensstoptoolstool_choicereasoninginclude_reasoning