Doubleword
    27B Dense
    Reasoning
    Vision
    FP8
    Alibaba

    Qwen3.8-27B

    Compact 27B multimodal reasoning model with a 262K context window, suited to coding, tool use, long-context work, and vision tasks.

    Parameters

    27B

    Dense · FP8

    Context Window

    262K

    Tokens

    Intelligence

    52

    AA Index

    Released

    Aug 2026

    13 Aug 2026

    Overview

    A small model that reasons like a big one

    Qwen3.8-27B is a compact multimodal reasoning model from Alibaba's Qwen family, designed for general-purpose reasoning, coding, tool use, and vision workloads. Its 262K-token context window supports long documents and extended agentic tasks, while the FP8 deployment offers efficient serving.

    Thinking mode: this model reasons step-by-step before responding by default. Set reasoning_effort to none to disable thinking. Other effort levels enable thinking but do not select graduated reasoning budgets.

    Best for

    Built for high-volume async workloads

    Complex Reasoning

    Reasons step-by-step before responding by default, producing structured answers on hard analytical tasks.

    Code Generation

    Strong coding and tool-use behaviour at a compact 27B footprint, ideal for high-volume async pipelines.

    Tool Use & Agents

    Reliable function calling for extended agentic runs where every token counts.

    Vision Tasks

    Multimodal input handling for document understanding, screenshots, and image-grounded reasoning.

    Long-Context Workloads

    262K tokens covers full repositories, long legal documents, and multi-document synthesis.

    Efficient FP8 Serving

    The FP8 deployment keeps throughput high and per-token cost low for batch and async jobs.

    Pricing

    Flexible pricing tiers

    Choose the optimal balance of speed and cost for your workflow. Prices are per 1M tokens.

    Tier Input / 1M tokens Output / 1M tokens
    Batch (24h)Cheapest $0.25 $1.50
    Async $0.35 $2.25
    Realtime $0.45 $3.00

    Context window natively supported up to 262K tokens. FP8 quantization.

    We can offer custom pricing for bulk discounts, large workloads, and dedicated deployments - reach out to hello@doubleword.ai.

    Quickstart

    Start building in minutes

    Qwen3.8-27B is accessible via OpenAI-compatible endpoints. Here's how to integrate it with the standard Python SDK.

    Python
    from openai import OpenAI
    
    client = OpenAI(
        api_key="your-api-key-here",
        base_url="https://api.doubleword.ai/v1"
    )
    
    # Thinking is enabled by default
    response = client.chat.completions.create(
        model="Qwen/Qwen3.8-27B-FP8",
        messages=[
            {"role": "user", "content": "Summarise this contract's termination clauses."}
        ],
        # Disable step-by-step reasoning:
        # reasoning_effort="none",
    )
    
    print(response.choices[0].message.content)

    💡 Pro tip

    Thinking is on by default. For simple, latency-sensitive calls set reasoning_effort="none" — other effort levels keep thinking on but do not set graduated reasoning budgets.

    Ready to deploy Qwen3.8-27B?