MODELS / ALIBABA

Qwen 3.8 Max Prime

Qwen 3.8 Max Prime is the high-speed edition of Qwen 3.8 Max, retaining its 2.4-trillion-parameter MoE architecture and full capabilities while delivering 1.5–2× higher output throughput. Built for coding, office automation, and long-running agent workflows, it supports…

TEXTREASONINGIMPLICIT-CACHINGREASONINGSTRUCTURED-OUTPUTTOOL-USEVISION
1M
CONTEXT WINDOW
131.1K
MAX OUTPUT TOKENS
$4
INPUT PRICE / 1M TOKENS
$12
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/alibaba/qwen3.8-max-prime",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything Qwen 3.8 Max Prime supports, in one table.

MODEL ID
blackboxai/alibaba/qwen3.8-max-prime
DEVELOPED BY
Alibaba
MODEL TYPE
Text
RELEASED
Sep 23, 2026
CONTEXT WINDOW
1M
MAX OUTPUT TOKENS
131.1K
INPUT MODALITIES
text, image
OUTPUT MODALITIES
text
INPUT PRICE
$4 / 1M tokens
OUTPUT PRICE
$12 / 1M tokens
CACHE READ
$0.5 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Not available (closed-weight model)
SUPPORTED PARAMETERS
max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoningresponse_formatstructured_outputs