Qwen 3.8 Flash pricing for math reasoning

Quick start

Call Qwen 3.8 Flash with the OpenAI Python SDK pointed at DashScope:

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://dashscope.aliyuncs.com/compatible-mode/v1",
    api_key=os.environ["DASHSCOPE_API_KEY"],
)
response = client.chat.completions.create(
    model="qwen3.8-flash",
    max_tokens=3000,
    messages=[{"role": "user", "content": "Your prompt here"}]
)
# Cost: ~$0.001635 per call at standard rates
# Input:  $0.15/MTok
# Output: $0.47/MTok

How Qwen 3.8 Flash compares on cost

Per-call cost for all models scoring 50+ on math reasoning benchmarks. Hover for details.

Highest-quality affordable option: GPT 5.6 Luna at $0.003900/call (2.4x the cost, 86/100 quality). Qwen 3.8 Flash is already the cheapest choice for math reasoning.

What drives math reasoning cost

Short problems, long solutions. Input is trivial and output is large because the derivation is the answer, so output rate is effectively the only price that matters. Models differ sharply in how much they show their working, which means two models at the same output rate can differ substantially in real cost per problem.

For Qwen 3.8 Flash specifically, that means output tokens cost 3.1x more than input, at $0.47 vs $0.15 per MTok. At this use case’s 1,500/3,000 token split, output accounts for 86% of the $0.001635 per-call cost.

Qwen 3.8 Flash quality benchmarks for math reasoning

Benchmark data for math reasoning is pending for Qwen 3.8 Flash. Test against your own evaluation suite before moving to production.

Benchmark data is not yet available for Qwen 3.8 Flash. We recommend testing against your own evaluation criteria.

About Qwen 3.8 Flash

Prices from help.aliyun.com/en/model-studio (qwen3.8-flash, read 2026-10-11). Cache hit: $0.016/MTok input. Not yet benchmarked, so never recommended.

Other models from Alibaba (Qwen)

You can compare Qwen 3.8 Flash head-to-head against any other model on our model comparison pages, or track how pricing has changed over time on the pricing history tracker.

Frequently asked questions