Model Comparison

GPT-4.5 vs Qwen3-Next-80B-A3B-BaseWhich is better in 2026?

Comparing GPT-4.5 and Qwen3-Next-80B-A3B-Base across benchmarks, pricing, and capabilities.

Verdict: GPT-4.5 vs Qwen3-Next-80B-A3B-Base — which is better?

GPT-4.5 (by OpenAI) and Qwen3-Next-80B-A3B-Base (by Alibaba Cloud / Qwen Team) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Choose GPT-4.5 if…

  • you want predictable pricing at $75.00/M input and $150.00/M output

Choose Qwen3-Next-80B-A3B-Base if…

  • you want the most recent training data — it shipped Sep 2025
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GPT-4.5 and Qwen3-Next-80B-A3B-Basedon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-4.5 specifies input context (128,000 tokens). Only GPT-4.5 specifies output context (4,096 tokens).

OpenAI
GPT-4.5
Input128,000 tokens
Output4,096 tokens
Alibaba Cloud / Qwen Team
Qwen3-Next-80B-A3B-Base
Input- tokens
Output- tokens
Wed Jul 22 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-4.5 supports multimodal inputs, whereas Qwen3-Next-80B-A3B-Base does not.

GPT-4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-4.5

Text
Images
Audio
Video

Qwen3-Next-80B-A3B-Base

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-4.5 is licensed under a proprietary license, while Qwen3-Next-80B-A3B-Base uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

GPT-4.5

Proprietary

Closed source

Qwen3-Next-80B-A3B-Base

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-4.5 was released on 2025-02-27, while Qwen3-Next-80B-A3B-Base was released on 2025-09-10.

Qwen3-Next-80B-A3B-Base is 7 months newer than GPT-4.5.

GPT-4.5

Feb 27, 2025

1.4 years ago

Qwen3-Next-80B-A3B-Base

Sep 10, 2025

10 months ago

6mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (128,000 tokens)
Supports multimodal inputs
Alibaba Cloud / Qwen Team

Qwen3-Next-80B-A3B-Base

View details

Alibaba Cloud / Qwen Team

Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against GPT-4.5 and Qwen3-Next-80B-A3B-Base side-by-side, then vote on the output you prefer.

GPT-4.5
✓ Preferred
Qwen3-Next-80B-A3B-Base
Open in Playground
AI Model Comparison Table
Feature
OpenAI
GPT-4.5
Alibaba Cloud / Qwen Team
Qwen3-Next-80B-A3B-Base

FAQ

Common questions about GPT-4.5 vs Qwen3-Next-80B-A3B-Base.

Which is better, GPT-4.5 or Qwen3-Next-80B-A3B-Base?

GPT-4.5 (OpenAI) and Qwen3-Next-80B-A3B-Base (Alibaba Cloud / Qwen Team) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does GPT-4.5 compare to Qwen3-Next-80B-A3B-Base in benchmarks?

GPT-4.5 scores GSM8k: 97.0%, MMLU: 90.8%, CharXiv-D: 90.0%, IFEval: 88.2%, HumanEval: 88.0%.

What are the context window sizes for GPT-4.5 and Qwen3-Next-80B-A3B-Base?

GPT-4.5 supports 128K tokens and Qwen3-Next-80B-A3B-Base supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-4.5 and Qwen3-Next-80B-A3B-Base?

Key differences include multimodal support (yes vs no), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-4.5 and Qwen3-Next-80B-A3B-Base?

GPT-4.5 is developed by OpenAI and Qwen3-Next-80B-A3B-Base is developed by Alibaba Cloud / Qwen Team.

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