Roboflow

GPT-6 Sol vs Qwen3.5 9b

Compare GPT-6 Sol and Qwen3.5 9b side-by-side.

Compare GPT-6 Sol vs Qwen3.5 9b live

Run the same image across every model that supports a task and compare their outputs side-by-side.

These models don't share enough common tasks for a side-by-side demo. See the comparison table below for their capabilities.

Models in this comparison

OpenAI

GPT-6 Sol vs Qwen3.5 9b on Vision Evals

GPT-6 Sol scores higher on all six Vision Evals tasks.

The widest gap is Object Detection, where GPT-6 Sol leads 73.6% to 46.6%.

Overall, GPT-6 Sol averages 80.7% (#10 of 57) against 64.3% (#44 of 57) for Qwen3.5 9b.

Qwen3.5 9b is cheaper ($0.0017 vs $0.0065 per sample), while GPT-6 Sol is faster (8.1s vs 33.6s per sample).

GPT-6 SolQwen3.5 9b

GPT-6 Sol vs Qwen3.5 9b Comparison Table

Evals updated September 22, 2026Pricing updated September 22, 2026

PropertyGPT-6 SolQwen3.5 9b
OrganizationOpenAIQwen
Categoryclosedopen
Modalitymultimodalmultimodal
Release DateSep 2026Mar 2026
Context Window1.1M262K
Parametersundisclosed9B
LicenseProprietaryApache 2.0
Pricing per 1M tokens
Input $/1M$2.00$0.100
Output $/1M$10.00$0.150
Vision Tasks
CaptioningDemo
Chart Question Answering
Classification
Document Question Answering
Image Tagging
Multi-Label Classification
Object Detection
OCRDemo
Vision Language
Visual Question AnsweringDemo
Model Features
Foundation Vision
LLMs with Vision Capabilities
Multimodal Vision
Vision Evalsground-truth scores across 6 vision tasks, pooled at low effort
Overall
80.7%
64.3%
Quantizationsself-hosted
BF1664.8%FP864.4%AWQ-INT464.3%hardware →
Avg cost / sample$0.0065$0.0017
Avg speed / sample8.15s33.65s
By task
Object Detection (low)
73.6%
±0.6, Mean of 3 runs, range 72.9 to 74.2
$0.011
46.6%
±0.6, Mean of 3 runs, range 45.8 to 47.0
$0
Object Detection (high)
75.2%
±0.9, Mean of 3 runs, range 74.1 to 75.9
$0.022
Counting (low)
74.8%
±2.7, Mean of 3 runs, range 71.6 to 77.0
$0.0039
51.8%
±2.7, Mean of 3 runs, range 48.6 to 54.0
$0
Counting (high)
76.1%
±3.4, Mean of 3 runs, range 71.6 to 78.4
$0.0071
Identification (low)
91.7%
±3.1, Mean of 3 runs, range 87.5 to 93.8
$0.0027
83.3%
±1.6, Mean of 3 runs, range 81.3 to 84.4
$0
Identification (high)
92.7%
±1.6, Mean of 3 runs, range 90.6 to 93.8
$0.0036
OCR (low)
91.7%
±0.4, Mean of 3 runs, range 91.3 to 92.1
$0.0070
77.5%
±7.3, Mean of 3 runs, range 68.4 to 83.0
$0
OCR (high)
91.9%
±0.3, Mean of 3 runs, range 91.6 to 92.2
$0.019
Data Extraction (low)
80.4%
±0.0, Mean of 3 runs, range 80.4 to 80.4
$0.0031
78.7%
±2.1, Mean of 3 runs, range 76.3 to 80.4
$0
Data Extraction (high)
82.5%
±1.0, Mean of 3 runs, range 81.4 to 83.5
$0.0045
Reasoning (low)
72.2%
±1.7, Mean of 3 runs, range 70.9 to 74.2
$0.0039
47.7%
±2.3, Mean of 3 runs, range 45.7 to 50.3
$0
Reasoning (high)
77.9%
±2.6, Mean of 3 runs, range 75.5 to 80.8
$0.0069

GPT-6 Sol vs Qwen3.5 9b: Overview

GPT-6 Sol

GPT-6 Sol is a proprietary multimodal reasoning model from OpenAI, released on September 22, 2026 alongside GPT-6 Luna as an efficiency-oriented tier of the GPT-6 family that began with GPT-6 Astra. OpenAI states that Sol and Luna are trained with methods similar to those used for Astra, carrying the same work on professional tasks, factuality, coding, computer use, and alignment into models that run faster. Sol accepts text and image input and returns text output, and OpenAI documents a context window of roughly one million tokens together with a knowledge cutoff of April 20, 2026.

The model targets complex coding and agentic workflows and exposes a configurable reasoning effort setting with levels of none, low, medium, high, xhigh, and max, which trades latency and token consumption against answer quality. OpenAI reports results including 33.2% on AutomationBench at xhigh effort and 56.4% on Agents' Last Exam at max effort, while its reported DeepSWE and OSWorld 2.0 figures of 68.8% and 64.4% fall below those of the earlier GPT-5.6 Sol. Its vision behavior covers image understanding tasks such as visual question answering, captioning, document and chart interpretation, and text recognition.

Qwen3.5 9b

Qwen3.5-9B is a 9-billion-parameter multimodal foundation model developed by Alibaba Cloud's Qwen team, released on March 2, 2026 as part of the Qwen3.5 model family. Designed for efficient multimodal reasoning and long-context language tasks, it notably outperforms the older Qwen3-30B, a model more than three times its size, on key benchmarks including GPQA Diamond, IFEval, and LongBench.

The model supports vision-language inputs through an early-fusion multimodal architecture built on a dense hybrid foundation of Gated Delta Networks and Gated Attention. It can also operate in a text-only mode by skipping the vision encoder during inference. It provides a 262,144-token context window (extensible to ~1M tokens via YaRN) and is released under the Apache License 2.0. Within the current AI landscape, Qwen3.5-9B offers a strong balance of capability and efficiency, making it well-suited for multimodal assistants, document analysis, long-context reasoning, and developer-deployed agentic systems.

Frequently Asked Questions

On Roboflow's Vision Evals, GPT-6 Sol performed better. It scores higher on all six vision tasks and averages 80.7% (#10 of 57) against 64.3% (#44 of 57) for Qwen3.5 9b. These scores measure vision capabilities only; either model may perform differently on work outside this benchmark's tasks.

Yes. On the Vision Evals Object Detection benchmark at low effort, GPT-6 Sol leads with 73.6% against 46.6%. This is the widest gap between the two models across the benchmark's tasks.

Qwen3.5 9b is cheaper to run. Across Roboflow's Vision Evals task mix it averaged $0.0017 per sample against $0.0065. Actual costs depend on your image sizes, prompts, and output length.

GPT-6 Sol is faster. Across Roboflow's Vision Evals it averaged 8.1s per inference against 33.6s. Latency varies with image size, prompt length, and provider load, so treat these as relative rather than guaranteed figures.