Roboflow

QwenQwenReleased Aug 2026Apache 2.0

Qwen3.8 Max

Qwen3.8 Max scores 79.3% overall on Roboflow's Vision Evals (October 26, 2026 snapshot), #9 of 65 models (Gemini 4 Argon leads at 87.5%).

Its best task is counting (81.1%, #2 of 65) and it ranks lowest on identification (88.5%, #25 of 65), a task most models score well on. It is an open-weight model from Qwen under the Apache 2.0 license, and free for commercial use.

Vision Evals79.3%Field median 63.5% · #9 of 65
Cost$0.0080/ sampleField median $0.0033 · #49 of 65
Speed18.9s/ sampleField median 10.4s · #50 of 65

Qwen3.8 Max Interactive Demo

Model settings

Thinking level

Max output tokens

Default 65,536 · max 65,536

Sign in to adjust thinking and output length per run.

Results appear here. Add an image or pick an example to run Qwen3.8 Max.

Qwen3.8 Max Vision Evals

Vision Evals is Roboflow's ground-truth benchmark: every model runs the same real-world samples across five vision tasks, and answers are scored against ground truth.

Evals updated October 26, 2026Pricing updated November 3, 2026

Strengths and weaknesses

Strengths

TaskScoreMedianRank
Counting81.1%64.9%#2 of 65

Weak spot

TaskScoreMedianRank
Identification88.5%84.4%#25 of 65

Still above the median. Most models score well on this task, so the ranks are tight.

Score by taskScoreRank
Counting
81.1%#2
Object Detection
76.7%#5
OCR
74.0%#8
Reasoning
75.9%#12
Identification
88.5%#25

Qwen3.8 MaxField median

Ranks out of 65 models (49 for OCR)

Results by task

TaskScoreField (0 to 100)RankCost / sampleSpeed
Object Detection (low)
76.7%
±0.3, Mean of 3 runs, range 76.5 to 77.1
#5 of 65$0.01229.91s
Object Detection (high)
78.4%
±0.4, Mean of 3 runs, range 78.1 to 78.9
#5 of 33$0.03083.04s
Counting (low)
81.1%
±2.0, Mean of 3 runs, range 78.4 to 82.4
#2 of 65$0.004610.13s
Counting (high)
81.1%
±0.0, Mean of 3 runs, range 81.1 to 81.1
#6 of 33$0.009125.36s
Identification (low)
88.5%
±1.6, Mean of 3 runs, range 87.5 to 90.6
#25 of 65$0.00275.24s
Identification (high)
89.6%
±1.6, Mean of 3 runs, range 87.5 to 90.6
#14 of 33$0.00378.44s
OCR (low)
74.0%
#8 of 49$0.007718.12s
Single value
63.9%
Transcription
95.2%
Structured JSON
85.4%
Text localization
59.0%
OCR (high)
71.8%
#15 of 49$0.02878.42s
Single value
61.7%
Transcription
94.8%
Structured JSON
81.6%
Text localization
59.6%
Reasoning (low)
75.9%
±2.0, Mean of 3 runs, range 73.5 to 77.5
#12 of 65$0.004811.30s
Reasoning (high)
80.3%
±2.0, Mean of 3 runs, range 78.2 to 82.1
#12 of 52$0.01131.92s
  • Thinking longer helps: 1.7 points higher on object detection at high effort for 2.4x the cost and 2.8x the latency.
  • Thinking longer changes nothing: the same counting score at high effort for 2x the cost and 2.5x the latency.
  • Thinking longer helps: 1 points higher on identification at high effort for 1.4x the cost and 1.6x the latency.
  • Thinking longer does not help: 2.2 points lower on ocr at high effort for 3.7x the cost and 4.3x the latency.
  • Thinking longer helps: 4.4 points higher on reasoning at high effort for 2.2x the cost and 2.8x the latency.

Price vs. performance

Score vs. cost

Overall benchmark score against estimated cost per sample, on a log scale. Upper-left is the sweet spot: high quality at low cost.

64 of 65 models plotted (the rest have no measured figure for this axis) · scores and efficiency pooled across all five tasks at low effort · Qwen3.8 Max highlighted

Qwen3.8 Max scores are the mean of 3 runs per task at both low and high effort; OCR is a single preliminary run · Methodology

View all Vision Evals →

Qwen3.8 Max Overview

Qwen3.8 Max is the flagship tier of Alibaba's Qwen3.8 family, a sparse mixture-of-experts multimodal model with roughly 2.4 trillion total parameters of which about 95 billion activate per token, which keeps serving cost and latency well below what the total parameter count would imply. It builds on the architectural foundation established by Qwen3.5 and accepts text, images, video, and documents as input while producing text output. Reported context handling reaches close to one million tokens, with a maximum generation length of 131,072 tokens, so the model is aimed at long-horizon agentic work such as repository-scale coding, multi-step research, data analysis, and office document workflows.

Deploy Qwen3.8 Max with an API

Qwen3.8 Max runs as a hosted REST endpoint through Roboflow Workflows. Pick a task, then hand the prompt to your coding agent or copy the code. Deploying the workflow into a free Roboflow workspace replaces the your-workspace and YOUR_API_KEY placeholders with your own.

Connect your agent to Roboflow (once)

Add the Roboflow MCP server

claude mcp add --transport http roboflow https://mcp.roboflow.com/mcp

Run /mcp and authorize Roboflow in your browser when the OAuth flow opens.

Start a new Claude Code session so the MCP loads, then paste the prompt below (it works the same in any agent).

Deploy this workflow to your Roboflow workspace to use it.

Integrate the Roboflow "Qwen3.8 Max" workflow into my app.

- Endpoint: POST https://serverless.roboflow.com/<your-workspace>/workflows/qwen3-8-max-captioning
- Auth: send my Roboflow API key as `api_key` in the request body, read from the ROBOFLOW_API_KEY env var (never hardcode).
- Body: { "api_key": ..., "inputs": { `image`: { type: "url" | "base64", value } } }.
- Billing: this workflow needs no provider API key — inference runs on my Roboflow credits. A BYO provider key can be added to the model step in the Roboflow workflow editor later.

With the Roboflow MCP connected, call `workflows_get` on "qwen3-8-max-captioning" to read the exact input schema (the source of truth), then `workflows_run` on a sample image to confirm the output shape before writing code (the MCP is authenticated, so this needs no key). Without the MCP, use the contract above.

Before running the app, set up these keys so it does not error at runtime:
- `ROBOFLOW_API_KEY` (sent as `api_key`) from https://app.roboflow.com/settings/api
Create a .gitignore'd .env with these variables, using placeholder values for any I haven't given you. Then pause and tell me directly, in your reply: the full path to the .env file, exactly which keys I need to paste in, and the link to get each one. Wait for me to confirm I've added them before you run anything. Do not run the app until I confirm.

Then add the integration to my codebase: match my project's language, framework, and conventions; read every key from environment variables (never hardcode); add basic error handling; and include a small runnable example. If you can't tell what language my project uses, ask me.
Installpip install inference-sdk

Deploy this workflow to your Roboflow workspace to use it.

# Inference runs on your Roboflow credits — no provider API key needed. To bill your own provider account instead, add an api_key to the model step in the Roboflow workflow editor.
# 1. Import the library
from inference_sdk import InferenceHTTPClient

# 2. Connect to your workflow
client = InferenceHTTPClient(
  api_url="https://serverless.roboflow.com",
  api_key="YOUR_API_KEY"
)

# 3. Run your workflow on an image
result = client.run_workflow(
  workspace_name="your-workspace",
  workflow_id="qwen3-8-max-captioning",
  images={
    "image": "YOUR_IMAGE.jpg"  # Path to your image file
  },
  use_cache=True  # cache workflow definition for 15 minutes
)

# 4. Get your results
print(result)

Deploy this workflow to your Roboflow workspace to use it.

// Inference runs on your Roboflow credits — no provider API key needed. To bill your own provider account instead, add an api_key to the model step in the Roboflow workflow editor.
const response = await fetch('https://serverless.roboflow.com/your-workspace/workflows/qwen3-8-max-captioning', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    api_key: 'YOUR_API_KEY',
    inputs: {
      "image": {"type": "url", "value": "IMAGE_URL"}
    }
  })
});

const result = await response.json();
console.log(result);

Deploy this workflow to your Roboflow workspace to use it.

# Inference runs on your Roboflow credits — no provider API key needed. To bill your own provider account instead, add an api_key to the model step in the Roboflow workflow editor.
curl --location 'https://serverless.roboflow.com/your-workspace/workflows/qwen3-8-max-captioning' \
--header 'Content-Type: application/json' \
--data '{
  "api_key": "YOUR_API_KEY",
  "inputs": {
    "image": {"type": "url", "value": "IMAGE_URL"}
  }
}'

Qwen3.8 Max License

Apache-2.0 · Permissive license

Qwen3.8 Max is released under the Apache 2.0 license, so it's commercially usable out of the box: you can ship it in closed-source, commercial products, including self-hosted deployments, without paying a license fee or open-sourcing your code. The Qwen3.8 Max license is permissive, so no separate commercial license is required.

Commercial use
Permitted. Because Apache-2.0 is permissive, Qwen3.8 Max can ship inside paid products and internal systems with no commercial license and no revenue threshold.
Modification
Permitted. Fine-tuning, quantizing, and distilling are all allowed, and your code changes can stay closed. Files you change must be marked as changed.
Redistribution
Permitted with attribution. Ship the Apache-2.0 license text and any NOTICE file alongside the weights or derived code.

Apache-2.0 grants an express patent license that terminates if you bring a patent claim over the work, and it disclaims warranties. Validate Qwen3.8 Max on your own data before you depend on it in production.

Read the full Apache 2.0 license ↗

Do I need a commercial license for Qwen3.8 Max?

This is the straightforward case: a permissive license is the best technical solution and you are free to deploy Qwen3.8 Max commercially without open-sourcing your own code.

Do not hesitate to reach out with questions for your commercial project. Our team will help you start solving business problems on the first call. See Roboflow commercial licensing for the models included in each plan.

Talk to sales

This model is released under the Apache License 2.0, a permissive open-source license that allows commercial use, modification, distribution, and patent use.

Yes. Under the terms of the Apache 2.0 license, you can freely use this model for commercial purposes, including in proprietary products. You must retain the copyright notice and disclaimers when redistributing.

License information is provided as a guide and is not legal advice.

Qwen3.8 Max Details

Details

Categoryclosed
ModalityMultimodal
Context Window984K
Parameters2.4T total, ~95B active
LicenseApache-2.0
Release DateAug 2026

Vision Tasks

CaptioningChart Question AnsweringClassificationDocument Question AnsweringImage TaggingMulti-Label ClassificationOCRObject DetectionVision LanguageVisual Question Answering

Usage

Past 30 Days

Frequently Asked Questions About Qwen3.8 Max Vision

Yes. Qwen3.8 Max accepts image input and handles OCR, object counting, identification, visual reasoning, and object detection. On Roboflow's Vision Evals its strongest task is Counting at 81.1% (#2 of 65 at low effort). You can test it on your own image in the demo above.

Yes, and it is one of the model's strongest vision skills: it scores 74% (#8 of 49 at low effort) on Vision Evals OCR, which covers single readings, full transcriptions, structured JSON, and locating text with boxes. Within that, full transcriptions score 95.2%, and returning the fields of a label or form as JSON scores 85.4%.

Yes. On Vision Evals, Qwen3.8 Max scores 76.7% mAP@50 on object detection (#5 of 65 at low effort) and 81.1% judge-graded accuracy on object counting.

On our benchmark's task mix, Qwen3.8 Max averages $0.0080 per sample (#49 of 65 on cost), with an average speed of 18.9s per sample across the benchmark. Actual cost depends on your images and prompts.

On the overall Vision Evals ranking, Qwen3.8 Max sits #9 of 65 at 79.3%, just behind Gemini 3.8 Flash (79.8%) and just ahead of Muse Wonder (78.8%). See the full side-by-side: Qwen3.8 Max vs Gemini 3.8 Flash.