Qwen3.8 Max · prompting-guide
Turn Qwen3.8-Max: Reasoning Effort, Context Retention, and Agent Integration Prompting Guide into an executable task with explicit inputs, environment, and boundaries; see the detail page for steps and limits.
Model: qwen3.8-max
Reasoning effort: {{REASONING_EFFORT}}
Task:
{{TASK}}
Tools:
{{TOOL_SCHEMA}}
Acceptance checks:
{{ACCEPTANCE_CHECKS}}
Return plan, tool arguments, evidence, unresolved issues, and pass/fail.Replace before running: {{TASK}}, {{REASONING_EFFORT}}, {{TOOL_SCHEMA}}, {{ACCEPTANCE_CHECKS}}
Prepare a Qwen3.8 Max endpoint, key, accepted reasoning_effort values, tool schemas, and stop rules.
Run identical input at low, medium, and high effort with fixed tools, schema, and timeout.
Separate planning, tool calls, result merging, and final verification; validate arguments and permissions server-side.
Record completion, output tokens, latency, retries, tool calls, and manual corrections.
Record the actual request and fall back if the parameter is ignored; lower effort when added reasoning gives no quality gain; never repeat side effects automatically.
The official integration direction does not prove current support in every provider, client, or Tabbit and gives no universal success rate.
The official recommendation is to use reasoning_effort to control reasoning depth: low for speed and cost, medium for balance, and xhigh for complex tasks; xhigh is the default level, and preserve_thinking is enabled by default. The official API example also shows how to handle reasoning_content separately from the final answer, and how to connect the model to Claude Code, Codex, Qwen Code, and OpenClaw.
Goal: State the final file, result, or system state to be delivered.
Context: Provide the project files, versions, data, and constraints that affect the answer.
Mode: Use low/medium for simple tasks; use xhigh only for complex planning, debugging, and long tool chains.
Output: Give the conclusion first, followed by the necessary evidence; code must run, and list the verification commands.
Completion check: Run tests or inspect tool results, report failed items, and do not treat reasoning text as the final answer.Start with low to establish a cost/latency baseline.
Use medium as the general default for extraction, routine analysis, and most coding tasks.
Reserve xhigh for difficult architecture work, long-horizon debugging, and tasks requiring multiple rounds of tool calls, and set token/time limits.
In streaming responses, store, display, and count reasoning_content separately from content.
For multi-turn Agents, retain the reasoning context required by the service; for tool calls, specify tool parameters, completion criteria, and the boundary for human approval.
API usage Qwen3.8-Max officially supports reasoning_effort, which can adjust reasoning depth and control cost: xhigh (de… This is a necessary excerpt; read the original source for full context.
The complete original page is saved in the official evaluation document in the same directory; this file retains only the original article paragraphs directly related to prompting, parameters, and Agent integration, avoiding duplicate copying of unrelated benchmark tables.
qwen.ai · Source date: 2026-08-03 · Edited: 2026-09-20
Read the original sourceQwen3.8 Max
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