Model Comparison

GPT-5.1 Codex High vs Qwen2 7B InstructWhich is better in 2026?

Comparing GPT-5.1 Codex High and Qwen2 7B Instruct across benchmarks, pricing, and capabilities.

Verdict: GPT-5.1 Codex High vs Qwen2 7B Instruct — which is better?

GPT-5.1 Codex High (by OpenAI) and Qwen2 7B Instruct (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-5.1 Codex High if…

  • you want the most recent training data — it shipped Nov 2025

Choose Qwen2 7B Instruct if…

  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GPT-5.1 Codex High and Qwen2 7B Instructdon'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-5.1 Codex High specifies input context (400,000 tokens). Only GPT-5.1 Codex High specifies output context (128,000 tokens).

OpenAI
GPT-5.1 Codex High
Input400,000 tokens
Output128,000 tokens
Alibaba Cloud / Qwen Team
Qwen2 7B Instruct
Input- tokens
Output- tokens
Sat Jun 27 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5.1 Codex High supports multimodal inputs, whereas Qwen2 7B Instruct does not.

GPT-5.1 Codex High can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-5.1 Codex High

Text
Images
Audio
Video

Qwen2 7B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5.1 Codex High is licensed under a proprietary license, while Qwen2 7B Instruct uses Apache 2.0.

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

GPT-5.1 Codex High

Proprietary

Closed source

Qwen2 7B Instruct

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-5.1 Codex High was released on 2025-11-12, while Qwen2 7B Instruct was released on 2024-07-23.

GPT-5.1 Codex High is 16 months newer than Qwen2 7B Instruct.

GPT-5.1 Codex High

Nov 12, 2025

7 months ago

1.3yr newer
Qwen2 7B Instruct

Jul 23, 2024

1.9 years ago

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 (400,000 tokens)
Supports multimodal inputs
Alibaba Cloud / Qwen Team

Qwen2 7B Instruct

View details

Alibaba Cloud / Qwen Team

Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against GPT-5.1 Codex High and Qwen2 7B Instruct side-by-side, then vote on the output you prefer.

GPT-5.1 Codex High
✓ Preferred
Qwen2 7B Instruct
Open in Playground
AI Model Comparison Table
Feature
OpenAI
GPT-5.1 Codex High
Alibaba Cloud / Qwen Team
Qwen2 7B Instruct

FAQ

Common questions about GPT-5.1 Codex High vs Qwen2 7B Instruct.

Which is better, GPT-5.1 Codex High or Qwen2 7B Instruct?

GPT-5.1 Codex High (OpenAI) and Qwen2 7B Instruct (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-5.1 Codex High compare to Qwen2 7B Instruct in benchmarks?

GPT-5.1 Codex High scores AIME 2025: 96.7%. Qwen2 7B Instruct scores MT-Bench: 84.1%, GSM8k: 82.3%, HumanEval: 79.9%, C-Eval: 77.2%, AlignBench: 72.1%.

What are the context window sizes for GPT-5.1 Codex High and Qwen2 7B Instruct?

GPT-5.1 Codex High supports 400K tokens and Qwen2 7B Instruct 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-5.1 Codex High and Qwen2 7B Instruct?

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-5.1 Codex High and Qwen2 7B Instruct?

GPT-5.1 Codex High is developed by OpenAI and Qwen2 7B Instruct is developed by Alibaba Cloud / Qwen Team.

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