Comparison

GPT-6.1 Sol vs Qwen3.8-Flash-Next

People have published 44 builds with GPT-6.1 Sol and 139 with Qwen3.8-Flash-Next, overlapping in 5 use cases. GPT-6.1 Sol has more coding, games, agents examples.

Successor to GPT-6 Sol, announced at OpenAI DevDay on 2026-09-29 with near-Astra intelligence for a fifth of the price: $2 input and $10 output per million tokens, a 1.05M-token context window and five reasoning levels. Rolled out in ChatGPT Work, Codex and the API.

44
Entries: 42
Creators: GitHub, YouTube, X
Top source

Qwen3.8-Flash-Next

Open-weight 125B-parameter multimodal MoE (about 6B active, plus a 51B n-gram embedding table) from Alibaba's Qwen team, an early preview of the Qwen4 architecture. Its n-gram table can sit in system RAM or on SSD, which let community engines such as Strata run it on gaming PCs and Macs.

139
Entries: 131
Creators: GitHub, Reddit, X
Top source

Same use case, side by side

Use caseGPT-6.1 SolQwen3.8-Flash-Next

Coding

GPT-6.1 Sol · 15 entriesGPT-6.1 Sol Is So Weird

Qwen3.8-Flash-Next · 4 entriesGVS5H: five Qwen3.8 models matching a frontier model on LiveCodeBench Hard

Games

GPT-6.1 Sol · 9 entriesCan GPT-6.1 Sol create a scary third-person horror game?

Qwen3.8-Flash-Next · 1 entryCosmic Arcade: a one-shot browser game made by local Flash-Next

Agents

GPT-6.1 Sol · 4 entriesCodex skill: Sol leads and delegates to Sol or Astra

Qwen3.8-Flash-Next · 2 entriesLocal Hermes Agent on Flash-Next EXL3 with TabbyAPI

Design

GPT-6.1 Sol · 3 entriesChronograph: Anime.js 3D scroll demo

Qwen3.8-Flash-Next · 1 entrySame prompt, Flash vs GLM 5.3 Flash: visual demo

Education

GPT-6.1 Sol · 1 entryShutterLab: pinhole and fisheye camera physics study

Qwen3.8-Flash-Next · 1 entryStrata makes Flash-Next fast in 12GB VRAM (Japanese)

Top builds with GPT-6.1 Sol

1
GPT-6.1 Sol Is So Weirdon YouTube:Can It Code?· 94.3K views94.3K views
2
Artificial Analysis on X: Sol replaces GPT-6 Sol after seven dayson X:Artificial Analysis· 2K likes2K likes
3
GPT 6.1 Sol or Opus 5.5? One Got Gappedon YouTube:Can It Code?· 41.7K views41.7K views
4
I Tested NEW GPT-6.1 Sol on Coding. I'm Shocked.on YouTube:AI Coding Daily· 27.1K views27.1K views
5
GPT-6.1 Sol builds the same 3D scene at every effort levelon YouTube:Code Bear· 24.6K views24.6K views

Top builds with Qwen3.8-Flash-Next

1
Strata: one-click engine for running the 125B Flash-Next on a gaming PCon GitHub:Niko1221· 16.8K stars16.8K stars
2
Flash-Next on a single DGX Spark (TP=1)on GitHub:MiaAI-Lab· 594 stars594 stars
3
Halogen: fastest Flash-Next server for AMD Strix Haloon GitHub:peonist-ai· 876 stars876 stars
4
GVS5H: five Qwen3.8 models matching a frontier model on LiveCodeBench Hardon GitHub:slee-persis· 736 stars736 stars
5
From 15 tps on llama.cpp to 65 tps with a home-built engineon X:David Hendrickson· 1.6K likes1.6K likes