Models

Qwen 3.5/3.6

Qwen is Mixlayer’s general-purpose model family. It spans small, low-latency models through large mixture-of-experts models for difficult reasoning and agentic work.

Model details

  • Context window: 131K tokens
  • Capabilities: Text · Vision · Reasoning · Tools

Available models

ModelIdentifier
Qwen 3.5 4B (Free)
Free prototyping and short, low-stakes tasks.		qwen/qwen3.5-4b-free
Qwen 3.5 9B
High-volume chat, classification, and summarization.		qwen/qwen3.5-9b
Qwen 3.6 27B
General-purpose reasoning and instruction following.		qwen/qwen3.6-27b
Qwen 3.6 35B (3B active)
Stronger reasoning, coding, and agents with MoE efficiency.		qwen/qwen3.6-35b-a3b
Qwen 3.5 397B (17B active)
Hard reasoning, multi-step coding, and agentic workloads.		qwen/qwen3.5-397b-a17b

Thinking modes

Qwen supports a thinking mode, with reasoning returned in reasoning_content, and a non-thinking mode for faster direct answers. See Reasoning for request examples.

Mixlayer platform defaults

When these parameters are omitted from a request, Mixlayer applies the following defaults:

IdentifierDefault settings
qwen/qwen3.5-4b-freetemperature=1.0, top_p=0.95, top_k=20, presence_penalty=1.5
qwen/qwen3.5-9btemperature=1.0, top_p=0.95, top_k=20, presence_penalty=1.5
qwen/qwen3.6-27btemperature=1.0, top_p=0.95, top_k=20
qwen/qwen3.6-35b-a3btemperature=1.0, top_p=0.95, top_k=20
qwen/qwen3.5-397b-a17btemperature=0.6, top_p=0.95, top_k=20
ModeRecommended sampling
Thinking — general taskstemperature=1.0, top_p=0.95, top_k=20, presence_penalty=0.0, repetition_penalty=1.0
Thinking — precise codingtemperature=0.6, top_p=0.95, top_k=20, presence_penalty=0.0, repetition_penalty=1.0
Non-thinkingtemperature=0.7, top_p=0.80, top_k=20, presence_penalty=1.5, repetition_penalty=1.0

Qwen also recommends min_p=0.0. Mixlayer does not currently expose min_p, so omit it and use the gateway default.

For the mixture-of-experts variants, active parameters primarily govern inference cost and latency while total parameters contribute to capability.