Qwen3.8 Flash
Qwen3.8 Flash is a reasoning model from Qwen released on Aug 26, 2026. It reads text, images and video and writes text, with a 1M token context window and up to 131K tokens per reply.
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It costs $0.15 per million input tokens and $0.47 per million output tokens. Cached input bills at $0.016, 89% less than fresh input.
It supports tool calling, structured JSON output and prompt caching.
23 providers serve it, including Deep Infra, Novita AI and Vercel AI Gateway. The lowest input price is $0.1126 per million tokens at AIHubMix.
On the Artificial Analysis Intelligence Index it scores 39.8, which places it at number 16 among the 43 models I track with independent scores.
- Modalities
- In / out price
- $0.15 / $0.47 per 1M
- Context
- 1M
- Max output
- 131K
- Released
- Aug 26, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Qwen3.8 Flash pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.15 / 1M tokens | |
|---|---|---|
| Output | $0.47 / 1M tokens | |
| Cached input (read) | $0.016 / 1M tokens | 89% off input |
| Cache write | $0.20 / 1M tokens |
Qwen3.8 Flash providers
23 providers serve it, including Deep Infra, Novita AI and Vercel AI Gateway. The lowest input price is $0.1126 per million tokens at AIHubMix. Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| Alibaba First party | $0.15 | $0.47 | $0.016 | 1M | 131K |
| Deep Infra | $0.113 | $0.382 | $0.0141 | 1M | 131K |
| Novita AI | $0.15 | $0.47 | $0.016 | 1M | 131K |
| Vercel AI Gateway | $0.15 | $0.47 | $0.016 | 991K | 128K |
| AIHubMix | $0.1126 | $0.38 | $0.0141 | 1M | 131K |
| Alibaba (China) | $0.1188 | $0.4007 | $0.0119 | 1M | 131K |
| Vancine | $0.12 | $0.38 | $0.013 | 1M | 131K |
| CrossModel | $0.13 | $0.43 | $0.016 | 1M | 131K |
| NanoGPT | $0.14 | $0.42 | $0.016 | 992K | 131K |
| Venice AI | $0.14 | $0.49 | $0.014 | 1M | 131K |
| Charm Hyper | $0.15 | $0.47 | $0.016 | 1M | 128K |
| DevPass (LLM Gateway) | $0.15 | $0.47 | $0.016 | 1M | 131K |
Showing 12 of 23 providers: the lab first, then the major clouds, then the cheapest resellers.
What Qwen3.8 Flash costs per month
Pick a workload close to yours or type your own volumes.
Independent benchmarks
Measured by third parties, not reported by Qwen. Each links to its source and shows the date I checked it.
A composite of 10 independent evaluations (agents 30%, coding 20%, scientific reasoning 20%, general 30%), run by Artificial Analysis on each model, version 4.3.2.
Artificial Analysis, checked Oct 10, 2026
Median output tokens per second measured by Artificial Analysis on the provider API, for the same model setting as its index score.
Artificial Analysis, checked Oct 10, 2026
Benchmarks Qwen reports (5)
- swe-bench-pro (SWE-bench Pro, Claude Code harness, 256K context, Qwen's refined task set)62.5%
- deepswe-v1.1 (DeepSWE 1.1, best of Claude Code and mini-SWE-agent harnesses)58.7%
- gpqa-diamond (GPQA Diamond)91.7%
- livecodebench (LiveCodeBench v6)91.9%
- hle-no-tools (HLE)35.9%
Labs pick their own settings and harnesses, so compare these only within one lab.
Supported request parameters
What you can set when you call Qwen3.8 Flash through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Reasoning
reasoning
Alternatives to Qwen3.8 Flash
Models that take the same inputs and call tools, closest in price, cheaper ones first.
- Index 37.9
Reads text, images, audio and video. Tool calling, structured output, reasoning. Served by 17 providers.
by xiaomiSep 22, 20261.05M context$0.14/M input tokens$0.28/M output tokens17 providers
- 1.05M context
Reads text, images, files, audio and video. Tool calling, structured output, reasoning. Served by 23 providers.
by googleJun 17, 2025$0.10/M input tokens$0.40/M output tokens23 providers
- 1M context
Reads text, images, audio and video. Tool calling, structured output, reasoning. Served by 9 providers.
by qwenSep 17, 2026$0.15/M input tokens$0.47/M output tokens9 providers
- Index 41.8
Reads text, images, files and video. Tool calling, structured output, reasoning. Served by 65 providers.
by z-aiAug 21, 20261M context$0.15/M input tokens$0.50/M output tokens65 providers
- 1.05M context
Reads text, images, audio and video. Tool calling, structured output, reasoning. Served by 21 providers.
by xiaomiApr 22, 2026$0.14/M input tokens$0.28/M output tokens21 providers
- 256K context
Reads text, images and video. Tool calling, structured output, reasoning. Served by 2 providers.
by bytedance-seedJun 23, 2026$0.1188/M input tokens$0.2969/M output tokens2 providers
More from Qwen
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by qwenOct 5, 2026$0.10/M input tokens$0.60/M output tokens
- 262K context
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by qwenOct 5, 2026$0.10/M input tokens$0.60/M output tokens
- 262K context
Reads text and images. Tool calling, reasoning.
by qwenOct 5, 2026$0.10/M input tokens$0.60/M output tokens
- 262K context
Reads text and images. Tool calling, reasoning.
by qwenOct 5, 2026$0.10/M input tokens$0.60/M output tokens
Qwen3.8 Flash questions
How much does the Qwen3.8 Flash API cost?
$0.15 per million input tokens and $0.47 per million output tokens, with cached input at $0.016. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Qwen3.8 Flash?
1,000,000 tokens of input, and it can write up to 131,072 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve Qwen3.8 Flash?
23 providers serve it, including Deep Infra, Novita AI and Vercel AI Gateway. The lowest input price is $0.1126 per million tokens at AIHubMix. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Does Qwen3.8 Flash support tool calling?
Yes. It accepts tool definitions and can return JSON that matches a schema, which is what an agent needs to call your APIs.
Is Qwen3.8 Flash open source?
No. Qwen serves it through an API only, so you cannot download the weights or host it yourself.
When was Qwen3.8 Flash released?
Aug 26, 2026.
How good is Qwen3.8 Flash compared with other models?
It scores 39.8 on the Artificial Analysis Intelligence Index. Benchmarks are a shortlist, not a verdict: test the top two or three candidates on your own tasks before you commit.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. Independent scores from my hand checked rankings, sources linked above. The summary is written from these facts.
Building on Qwen3.8 Flash?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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