GPT-5.1 vs Qwen3.8-Flash-Next
Qwen3.8-Flash-Next leads the LLM Stats Score 49.6 to 36.7.
OpenAI · Alibaba Cloud / Qwen Team · Updated for 2026
Which is better?
Qwen3.8-Flash-Next leads the overall LLM Stats Score 49.6 to 36.7, ranking #16 overall.
In the 1 individual benchmarks reported for both models, Qwen3.8-Flash-Next wins 1; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT-5.1
- you want predictable pricing at $1.25/M input and $10.00/M output
Choose Qwen3.8-Flash-Next
- overall performance matters — it scores 49.6 and ranks #16 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Aug 2026
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
9 reported for GPT-5.1 · 22 for Qwen3.8-Flash-Next
GPT-5.1 outperforms in 0 benchmarks, while Qwen3.8-Flash-Next is better at 1 benchmark (GPQA).
Qwen3.8-Flash-Next significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only GPT-5.1 specifies input context (400,000 tokens). Only GPT-5.1 specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Both GPT-5.1 and Qwen3.8-Flash-Next support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5.1
Qwen3.8-Flash-Next
License
Usage and distribution terms
GPT-5.1 is licensed under a proprietary license, while Qwen3.8-Flash-Next uses Qwen Community License 1.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Qwen Community License 1.0
Open weights
Release Timeline
When each model was launched
GPT-5.1 was released on 2025-11-13, while Qwen3.8-Flash-Next was released on 2026-08-26.
Qwen3.8-Flash-Next is 10 months newer than GPT-5.1.
Nov 13, 2025
9 months ago
Aug 26, 2026
6 days ago
9mo newerKnowledge Cutoff
When training data ends
GPT-5.1 has a documented knowledge cutoff of 2024-09-30, while Qwen3.8-Flash-Next's cutoff date is not specified.
We can confirm GPT-5.1's training data extends to 2024-09-30, but cannot make a direct comparison without Qwen3.8-Flash-Next's cutoff date.
Sep 2024
—
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5.1 and Qwen3.8-Flash-Next side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5.1 vs Qwen3.8-Flash-Next.