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Command R (Aug 2024) vs GPT 5.6 Luna

At a glance

Cohere's mid-tier retrieval-optimized model from August 2024.

128K ctx$0.15/$0.60 per M

OpenAI's fastest, most affordable GPT-5.6 tier for high-volume, latency-sensitive work.

1.1M ctx$1.00/$6.00 per M
Agent Demos
All agent demos

No shared agent demos for these models yet.

AI Output
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No captured outputs for these models yet.

Benchmarks
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Reasoning
CodingInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-11
Reasoning & Knowledge
Graduate Science92.3%
Agentic
Terminal Tasks84.7%
Specs
128K
Context
4K
Max output
Aug 2024
Released
1.1M
Context
128K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input85%$0.15/M tokens
Output90%$0.60/M tokens
Live pricing, shown before you run
Input$1.00/M tokens
Output$6.00/M tokens
Cache read$0.10/M tokens
Cache write$1.25/M tokens
Web search$0.01/search
Chat with Command R (Aug 2024)Go to model
Chat with GPT 5.6 LunaGo to model
Frequently Asked Questions: Command R (Aug 2024) vs GPT 5.6 Luna▼

Which is better, Command R (Aug 2024) or GPT 5.6 Luna?

▼

Both Command R (Aug 2024) and GPT 5.6 Luna are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Command R (Aug 2024) or GPT 5.6 Luna?

▼

Command R (Aug 2024) has a lower blended cost. Command R (Aug 2024): $0.15 input / $0.60 output. GPT 5.6 Luna: $1.00 input / $6.00 output.

Which has a larger context window, Command R (Aug 2024) or GPT 5.6 Luna?

▼

GPT 5.6 Luna has a larger context window: Command R (Aug 2024) supports 128K tokens vs GPT 5.6 Luna at 1.1M tokens.

Do both Command R (Aug 2024) and GPT 5.6 Luna support vision?

▼

GPT 5.6 Luna supports vision/image input, but Command R (Aug 2024) does not.

What are the key differences between Command R (Aug 2024) and GPT 5.6 Luna?

▼

Key differences: Command R (Aug 2024) is significantly cheaper; only GPT 5.6 Luna supports vision input; only GPT 5.6 Luna offers extended reasoning mode. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Command R (Aug 2024) and GPT 5.6 Luna for free on idapt.app to see which performs better for your specific needs.

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