AI model comparison

Qwen3.8 Flash vs Qwen3.8 27B

Side by side comparison of Qwen3.8 Flash and Qwen3.8 27B on pricing, benchmark scores, context window, and more.

Qwen3.8 Flash is a multimodal reasoning model from Alibaba.

Input / 1M
$0.15
Output / 1M
$0.47
Context
1M

Qwen3.8 27B is an open-weight dense vision-language model from Qwen.

Input / 1M
$0.04
Output / 1M
$1.25
Context
1M

Comparing image generators? Compare image models

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

qwen logo

Qwen3.8 Flash

1.3x cheaper for a typical chat

Higher intelligence score

Not available

Not enough benchmark data

Larger context window

Tie

1M vs 1M tokens

Newer release

qwen logo

Qwen3.8 Flash

Released August 26, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

qwen logoQwen3.8 FlashNot available
qwen logoQwen3.8 27B20.1

Coding index

qwen logoQwen3.8 FlashNot available
qwen logoQwen3.8 27B68.1

Agentic index

qwen logoQwen3.8 FlashNot available
qwen logoQwen3.8 27B45.8

Pricing

Qwen3.8 Flash vs Qwen3.8 27B API pricing

Per-token API rates. Cheaper option highlighted.

Metricqwen logoQwen3.8 Flashqwen logoQwen3.8 27B
Input tokensPer 1M tokens$0.15$0.04
Output tokensPer 1M tokens$0.47$1.25
Cached input (read)Per 1M tokens$0.02$0.00
Cache writePer 1M tokensNot availableNot available

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

qwen logoQwen3.8 Flash$0.54
qwen logoQwen3.8 27B$0.70

Coding task

30K in, 4K out

qwen logoQwen3.8 Flash$6.38$2.36 cached
qwen logoQwen3.8 27B$6.17$5.12 cached

Long document summary

150K in, 2K out

qwen logoQwen3.8 Flash$23.44$3.34 cached
qwen logoQwen3.8 27B$8.35$3.09 cached

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metricqwen logoQwen3.8 Flashqwen logoQwen3.8 27B
Context window1M tokens1M tokens
Max output131K tokens66K tokens
Input typesImage, Text, VideoImage, Text, Video
Output typesTextText
Reasoning effort levelsNot availableExtra high, Medium, Low, None
Default reasoning effortNot availableExtra high
Release dateAugust 26, 2026August 14, 2026

Features

Supported features

API features available for each model.

Metricqwen logoQwen3.8 Flashqwen logoQwen3.8 27B
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureSupportedSupported
Stop sequencesSupportedSupported
Deterministic seedSupportedSupported
Verbosity controlNot supportedNot supported

Our take

Qwen3.8 Flash is 1.3x cheaper for a typical chat. The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is Qwen3.8 Flash or Qwen3.8 27B cheaper?

Qwen3.8 Flash is cheaper for a typical chat (2K input tokens and 500 output tokens). Qwen3.8 Flash costs $0.15 per 1M input tokens and $0.47 per 1M output tokens, while Qwen3.8 27B costs $0.04 per 1M input tokens and $1.25 per 1M output tokens.

Which has a bigger context window, Qwen3.8 Flash or Qwen3.8 27B?

Qwen3.8 Flash supports up to 1M tokens of context, compared with 1M for Qwen3.8 27B.

Can I use Qwen3.8 Flash and Qwen3.8 27B at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Qwen3.8 Flash and Qwen3.8 27B answer side by side and keep the better response.

qwen logoqwen logo

Why choose? Ask both.

Send one prompt to Qwen3.8 Flash and Qwen3.8 27B at the same time. Compare the answers side by side and keep the best one.