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Model details

Qwen3.8 Flash

Qwen3.8 Flash sits in the qwen family as an experimental preview of the architecture that will underpin Qwen4, mirroring how an earlier Next release previewed Qwen3. It is built as a multimodal mixture-of-experts model with 125 billion total parameters and only about 6 billion activated per token, a sparse design intended to keep inference economical despite very large overall capacity. The architecture also includes a roughly 51 billion-parameter n-gram embedding system and a small multi-token prediction module for speculative decoding, both signaling the structural innovations Alibaba is testing ahead of its next major release.

In practical terms, Qwen3.8 Flash is pitched at developers who want strong coding and agent-style reasoning at long context without frontier-model pricing. Alibaba-claimed benchmarks cited in third-party reporting put it at SWE-bench Pro 62.5 and CoWorkBench 73.9, scores framed as competitive with leading closed models on agentic software tasks and coding evaluations. The model accepts text, image, and video inputs and returns text, making it a reasonable fit for multimodal assistants, document understanding, and tool-driven coding workflows where cost-per-token matters as much as raw capability.

Alibaba (China)qwen3.8-flashqwen

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Provider
Alibaba (China)
Model key
qwen3.8-flash
Release date
Aug 26, 2026
Last updated
Aug 26, 2026
Input modalities
Output modalities
Capabilities

Cost

Input token cost
$0.11875
Output token cost
$0.40073

Limits

Output tokens
131,072 tokens
Context window
1,000,000 tokens

Transparent token rates

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Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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Latest news about Qwen3.8 Flash

Alibaba (China)

CoveragePreview

Alibaba this week unveiled Qwen3.8-Flash, an open-weight multimodal mixture-of-experts model with 125 billion parameters (6 billion active per token) offered as a prelude to Qwen4 and positioned as both a performance and value-for-money play. The Ground News aggregation of coverage from The New Stack, Intelligent Livin An Intelligent Living item in the cluster claims Qwen3.8-Flash beats DeepSeek V4 Pro on SWE-bench Pro (62.5 versus 55.4) while costing roughly a quarter of the price, and lands within striking distance of Claude Opus 5 on coding benchmarks at 33x lower input cost, framing the release as a cost-efficiency challenge to i

Alibaba (China)

CoverageBenchmark

Alibaba's Qwen team released Qwen3.8-Flash-Next on August 26, 2026, as an open-weight multimodal mixture-of-experts model carrying 125 billion total parameters with 6 billion active per token, positioned by Alibaba as an early architectural preview of the upcoming Qwen4 family — mirroring how Qwen3-Next previewed Qwen3 On QwenCloud the model is listed as qwen3.8-flash at $0.16 per million input tokens and $0.47 per million output tokens, giving developers an aggressive price point for a long-context MoE. Alibaba's claimed benchmarks include SWE-bench Pro at 62.5 versus Claude Opus 4.6 Max at 53.4, CoWorkBench at 73.9 versus 68.2, and

Alibaba (China)

CoveragePreview

AICoder reports that Alibaba Qwen open-sourced Qwen3.8-Flash, a multimodal MoE with 125B parameters plus 51B N-gram embeddings and only 6B active per token, designed as an early look at the Qwen4 architecture. The model scores 58.7 on DeepSWE 1.1, 62.5 on SWE-bench Pro, and 73.9 on CoWorkBench, beating Qwen3.7-Plus esp Weights are available on Hugging Face and ModelScope with day-0 vLLM/SGLang support, and the QwenCloud API is priced at $0.16 per million input tokens and $0.47 per million output tokens. The same launch shipped Qwen3.8-Flash-Next as an open-weights architectural preview intended to preview the Qwen4 family. Training c

Alibaba (China)

Coverage

Reuters reported that Alibaba's Qwen released Qwen3.8-Flash, a new multimodal model delivering stronger coding and office-task performance at substantially reduced training costs. Qwen3.8-Flash supports a default context window of 262,144 tokens, expandable to 1 million tokens, enabling it to handle large files, length For API access, Qwen said it would charge 1 yuan ($0.1488) per million input tokens and 3 yuan per million output tokens, aligning with the Model Studio/Qwen Cloud pricing announced alongside the launch. Alibaba additionally released open-source weights for Qwen3.8-Flash-Next, described by Qwen as a prototype architect

Alibaba (China)

Coverage

Alibaba's Qwen team released Qwen3.8-Flash on August 26, 2026, positioning it as a multimodal model with stronger coding and office-task performance while cutting training costs to roughly one-ninth of those required for the previous Qwen3.7-Plus model, according to a Qwen statement carried by Reuters. The launch sits Qwen3.8-Flash supports a default 262,144-token context window that can be extended to 1 million tokens for handling large files, lengthy conversations, and extensive research material, Reuters reported. Pricing via Alibaba's API is set at 1 yuan (about US$0.1488) per million input tokens and 3 yuan per million output t

Alibaba (China)

Official sourceRelease Notes

Alibaba officially unveiled Qwen3.8-Flash as an open-weight, multimodal Mixture-of-Experts (MoE) model designed for an optimal balance of capability, latency, and cost. The architecture pairs a 125B-parameter main model with an additional 51B N-gram embeddings component, activating only 6B parameters per token. Qwen3.8 Qwen3.8-Flash demonstrates competitive agentic coding, long-horizon agent, and multimodal performance against leading models including DeepSeek-V4-Flash and Claude-Opus-4.6 across benchmarks such as SWE-bench Pro, CoWorkBench, Toolathlon Verified, MathVision, AndroidWorld, and ERQA. API access is priced at 1 RMB (~$0.1

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