Model Comparison

Command R+ vs GPT-5 CodexWhich is better in 2026?

Comparing Command R+ and GPT-5 Codex across benchmarks, pricing, and capabilities.

Verdict: Command R+ vs GPT-5 Codex — which is better?

Command R+ (by Cohere) and GPT-5 Codex (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.

Choose Command R+ if…

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

Choose GPT-5 Codex if…

  • you want the most recent training data — it shipped Sep 2025
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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Command R+ and GPT-5 Codexdon'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 Command R+ specifies input context (128,000 tokens). Only Command R+ specifies output context (128,000 tokens).

Cohere
Command R+
Input128,000 tokens
Output128,000 tokens
OpenAI
GPT-5 Codex
Input- tokens
Output- tokens
Wed Jun 24 2026 • llm-stats.com

License

Usage and distribution terms

Command R+ is licensed under CC BY-NC, while GPT-5 Codex uses a proprietary license.

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

Command R+

CC BY-NC

Open weights

GPT-5 Codex

Proprietary

Closed source

Release Timeline

When each model was launched

Command R+ was released on 2024-08-30, while GPT-5 Codex was released on 2025-09-15.

GPT-5 Codex is 13 months newer than Command R+.

Command R+

Aug 30, 2024

1.8 years ago

GPT-5 Codex

Sep 15, 2025

9 months ago

1.0yr newer

Knowledge Cutoff

When training data ends

GPT-5 Codex has a documented knowledge cutoff of 2024-09-30, while Command R+'s cutoff date is not specified.

We can confirm GPT-5 Codex's training data extends to 2024-09-30, but cannot make a direct comparison without Command R+'s cutoff date.

Command R+

—

GPT-5 Codex

Sep 2024

Outputs Comparison

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Key Takeaways

Cohere
Larger context window (128,000 tokens)
Has open weights
OpenAI

No standout differentiators in the data we have for this pair.

Detailed Comparison

AI Model Comparison Table
Feature
Cohere
Command R+
OpenAI
GPT-5 Codex

FAQ

Common questions about Command R+ vs GPT-5 Codex.

Which is better, Command R+ or GPT-5 Codex?

Command R+ (Cohere) and GPT-5 Codex (OpenAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Command R+ compare to GPT-5 Codex in benchmarks?

Command R+ scores HellaSwag: 88.6%, Winogrande: 85.4%, MMLU: 75.7%, ARC-C: 71.0%, GSM8k: 70.7%. GPT-5 Codex scores SWE-Bench Verified: 74.5%.

What are the context window sizes for Command R+ and GPT-5 Codex?

Command R+ supports 128K tokens and GPT-5 Codex 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 Command R+ and GPT-5 Codex?

Key differences include licensing (CC BY-NC vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Command R+ and GPT-5 Codex?

Command R+ is developed by Cohere and GPT-5 Codex is developed by OpenAI.

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