Model Comparison

Command A+ vs GPT-5.5Which is better in 2026?

GPT-5.5 significantly outperforms across most benchmarks.

Verdict: Command A+ vs GPT-5.5 — which is better?

Command A+ (by Cohere) and GPT-5.5 (by OpenAI) 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.

Command A+ outperforms in 0 benchmarks, while GPT-5.5 is better at 2 benchmarks (MMMU-Pro, Tau2 Telecom). GPT-5.5 significantly outperforms across most benchmarks.

Choose Command A+ if…

  • you want the most recent training data — it shipped May 2026
  • you need open weights you can self-host or fine-tune

Choose GPT-5.5 if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Command A+ outperforms in 0 benchmarks, while GPT-5.5 is better at 2 benchmarks (MMMU-Pro, Tau2 Telecom).

GPT-5.5 significantly outperforms across most benchmarks.

Fri Jul 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-5.5 specifies input context (1,050,000 tokens). Only GPT-5.5 specifies output context (128,000 tokens).

Cohere
Command A+
Input- tokens
Output- tokens
OpenAI
GPT-5.5
Input1,050,000 tokens
Output128,000 tokens
Fri Jul 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Command A+ and GPT-5.5 support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Command A+

Text
Images
Audio
Video

GPT-5.5

Text
Images
Audio
Video

License

Usage and distribution terms

Command A+ is licensed under Apache 2.0, while GPT-5.5 uses a proprietary license.

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

Command A+

Apache 2.0

Open weights

GPT-5.5

Proprietary

Closed source

Release Timeline

When each model was launched

Command A+ was released on 2026-05-20, while GPT-5.5 was released on 2026-04-23.

Command A+ is 1 month newer than GPT-5.5.

Command A+

May 20, 2026

1 months ago

3w newer
GPT-5.5

Apr 23, 2026

2 months ago

Knowledge Cutoff

When training data ends

GPT-5.5 has a documented knowledge cutoff of 2025-12-01, while Command A+'s cutoff date is not specified.

We can confirm GPT-5.5's training data extends to 2025-12-01, but cannot make a direct comparison without Command A+'s cutoff date.

Command A+

—

GPT-5.5

Dec 2025

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Cohere
Has open weights
OpenAI
Larger context window (1,050,000 tokens)
Higher MMMU-Pro score (83.2% vs 63.0%)
Higher Tau2 Telecom score (98.0% vs 85.0%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Command A+ and GPT-5.5 side-by-side, then vote on the output you prefer.

Command A+
✓ Preferred
GPT-5.5
Open in Playground
AI Model Comparison Table
Feature
Cohere
Command A+
OpenAI
GPT-5.5

FAQ

Common questions about Command A+ vs GPT-5.5.

Which is better, Command A+ or GPT-5.5?

GPT-5.5 significantly outperforms across most benchmarks. Command A+ is made by Cohere and GPT-5.5 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Command A+ compare to GPT-5.5 in benchmarks?

Command A+ scores AIME 2025: 90.0%, CharXiv-D: 88.0%, MT-AIME 2025: 86.0%, Tau2 Telecom: 85.0%, WMT24++: 81.0%. GPT-5.5 scores Tau2 Telecom: 98.0%, ARC-AGI: 95.0%, GPQA: 93.6%, ARC-AGI v2: 85.0%, GDPval-MM: 84.9%.

What are the context window sizes for Command A+ and GPT-5.5?

Command A+ supports an unknown number of tokens and GPT-5.5 supports 1.1M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Command A+ and GPT-5.5?

Key differences include licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Command A+ and GPT-5.5?

Command A+ is developed by Cohere and GPT-5.5 is developed by OpenAI.

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