Model Comparison

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

GPT-5.5 Instant shows notably better performance in the majority of benchmarks.

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

Command A+ (by Cohere) and GPT-5.5 Instant (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 1 benchmarks (AIME 2025), while GPT-5.5 Instant is better at 2 benchmarks (CharXiv-R, MMMU-Pro). GPT-5.5 Instant shows notably better performance in the majority of 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 Instant if…

  • you want the strongest raw capability — it leads on 2 of 3 shared benchmarks

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Command A+ outperforms in 1 benchmarks (AIME 2025), while GPT-5.5 Instant is better at 2 benchmarks (CharXiv-R, MMMU-Pro).

GPT-5.5 Instant shows notably better performance in the majority of 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 Instant specifies input context (400,000 tokens). Only GPT-5.5 Instant specifies output context (128,000 tokens).

Cohere
Command A+
Input- tokens
Output- tokens
OpenAI
GPT-5.5 Instant
Input400,000 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 Instant 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 Instant

Text
Images
Audio
Video

License

Usage and distribution terms

Command A+ is licensed under Apache 2.0, while GPT-5.5 Instant 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 Instant

Proprietary

Closed source

Release Timeline

When each model was launched

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

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

Command A+

May 20, 2026

1 months ago

2w newer
GPT-5.5 Instant

May 5, 2026

2 months ago

Knowledge Cutoff

When training data ends

GPT-5.5 Instant has a documented knowledge cutoff of 2025-08-31, while Command A+'s cutoff date is not specified.

We can confirm GPT-5.5 Instant's training data extends to 2025-08-31, but cannot make a direct comparison without Command A+'s cutoff date.

Command A+

—

GPT-5.5 Instant

Aug 2025

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Cohere
Has open weights
Higher AIME 2025 score (90.0% vs 81.2%)
OpenAI
Larger context window (400,000 tokens)
Higher CharXiv-R score (81.6% vs 52.7%)
Higher MMMU-Pro score (76.0% vs 63.0%)

Detailed Comparison

Interactive Arena

Judge for yourself.

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

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

FAQ

Common questions about Command A+ vs GPT-5.5 Instant.

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

GPT-5.5 Instant shows notably better performance in the majority of benchmarks. Command A+ is made by Cohere and GPT-5.5 Instant 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 Instant 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 Instant scores HealthBench Consensus: 94.7%, OmniDocBench 1.5: 87.5%, GPQA: 85.6%, CharXiv-R: 81.6%, AIME 2025: 81.2%.

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

Command A+ supports an unknown number of tokens and GPT-5.5 Instant supports 400K 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 Instant?

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 Instant?

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

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