Model Comparison

Command R+ vs GPT-5.1 InstantWhich is better in 2026?

Comparing Command R+ and GPT-5.1 Instant across benchmarks, pricing, and capabilities.

Verdict: Command R+ vs GPT-5.1 Instant — which is better?

Command R+ (by Cohere) and GPT-5.1 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.

On price, Command R+ is roughly 7.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-5.1 Instant also accepts a larger context window (400,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Command R+ if…

  • cost matters — it's about 7.9x cheaper per token
  • you need open weights you can self-host or fine-tune

Choose GPT-5.1 Instant if…

  • you process long inputs — it offers a 400,000 token context window
  • you want the most recent training data — it shipped Nov 2025
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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Command R+ and GPT-5.1 Instantdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Command R+ costs less

For input processing, Command R+ ($0.25/1M tokens) is 5.0x cheaper than GPT-5.1 Instant ($1.25/1M tokens).

For output processing, Command R+ ($1.00/1M tokens) is 10.0x cheaper than GPT-5.1 Instant ($10.00/1M tokens).

In conclusion, GPT-5.1 Instant is more expensive than Command R+.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Jun 23 2026 • llm-stats.com
Cohere
Command R+
Input tokens$0.25
Output tokens$1.00
Best providerCohere
OpenAI
GPT-5.1 Instant
Input tokens$1.25
Output tokens$10.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5.1 Instant accepts 400,000 input tokens compared to Command R+'s 128,000 tokens. Both models can generate responses up to 128,000 tokens.

Cohere
Command R+
Input128,000 tokens
Output128,000 tokens
OpenAI
GPT-5.1 Instant
Input400,000 tokens
Output128,000 tokens
Tue Jun 23 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5.1 Instant supports multimodal inputs, whereas Command R+ does not.

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

Command R+

Text
Images
Audio
Video

GPT-5.1 Instant

Text
Images
Audio
Video

License

Usage and distribution terms

Command R+ is licensed under CC BY-NC, while GPT-5.1 Instant 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-5.1 Instant

Proprietary

Closed source

Release Timeline

When each model was launched

Command R+ was released on 2024-08-30, while GPT-5.1 Instant was released on 2025-11-12.

GPT-5.1 Instant is 15 months newer than Command R+.

Command R+

Aug 30, 2024

1.8 years ago

GPT-5.1 Instant

Nov 12, 2025

7 months ago

1.2yr 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

Provider Availability

Command R+ is available from Cohere, Bedrock. GPT-5.1 Instant is available from OpenAI.

Command R+

cohere logo
Cohere
Input Price:Input: $0.25/1MOutput Price:Output: $1.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

GPT-5.1 Instant

openai logo
OpenAI
Input Price:Input: $1.25/1MOutput Price:Output: $10.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Cohere
Less expensive input tokens
Less expensive output tokens
Has open weights
OpenAI
Larger context window (400,000 tokens)
Supports multimodal inputs

Detailed Comparison

AI Model Comparison Table
Feature
Cohere
Command R+
OpenAI
GPT-5.1 Instant

FAQ

Common questions about Command R+ vs GPT-5.1 Instant.

Which is better, Command R+ or GPT-5.1 Instant?

Command R+ (Cohere) and GPT-5.1 Instant (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-5.1 Instant in benchmarks?

Command R+ scores HellaSwag: 88.6%, Winogrande: 85.4%, MMLU: 75.7%, ARC-C: 71.0%, GSM8k: 70.7%. GPT-5.1 Instant scores Tau2 Telecom: 95.6%, AIME 2025: 94.0%, BrowseComp Long Context 128k: 90.0%, GPQA: 88.1%, MMMU: 85.4%.

Is Command R+ cheaper than GPT-5.1 Instant?

Command R+ is 5.0x cheaper for input tokens. Command R+ costs $0.25/M input and $1.00/M output via cohere. GPT-5.1 Instant costs $1.25/M input and $10.00/M output via openai.

What are the context window sizes for Command R+ and GPT-5.1 Instant?

Command R+ supports 128K tokens and GPT-5.1 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 R+ and GPT-5.1 Instant?

Key differences include context window (128K vs 400K), input pricing ($0.25 vs $1.25/M), multimodal support (no vs yes), licensing (CC BY-NC vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Command R+ and GPT-5.1 Instant?

Command R+ is developed by Cohere and GPT-5.1 Instant is developed by OpenAI.

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