LLM Comparison
Command A vs GPT-5.6 Luna
Side-by-side specs, pricing & capabilities · Updated August 2026
Price vs Intelligence
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 29 4.7 | 36 10.3 |
| Family | Command | GPT-5.6 |
| Status | Current | Current |
| Release Date | Mar 2025 | Jul 2026 |
| Context Window | 256K tokens | 1.1M tokens |
| Input Price | $2.50/M tokens | $1.00/M tokens |
| Output Price | $10.00/M tokens | $6.00/M tokens |
| Pricing Notes | — | OpenAI pricing page lists $1 input and $6 output per 1M tokens, plus GPT-5.6 cache-write and cache-read pricing. |
| Capabilities | textcode | textvisionreasoningcodingtool-useweb-searchfile-searchcomputer-useagents |
| Max Output | 8K tokens | 128K tokens |
| API Identifier | cohere/command-a | gpt-5.6-luna |
| Benchmarks | ||
| MMLU | 80.1openrouter | — |
| Artificial Analysis Intelligence Index | — | 51artificial-analysis |
| Artificial Analysis Coding Agent Index | — | 74.6artificial-analysis |
| View Command A | View GPT-5.6 Luna | |
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| GPT-5.6 LunaCheapest | $1.00 | $3.00 | $4.00 | — |
| Command A | $2.50 | $5.00 | $7.50 | +88% |
Cohere
Command A
Command A is a large language model from Cohere. Supports up to 256,000 token context window. Achieves 80.1% on MMLU. Available from $2.50/M input tokens.
OpenAI
GPT-5.6 Luna
GPT-5.6 Luna is OpenAI lower-cost GPT-5.6 model for high-volume reasoning, coding, and agentic workloads. OpenAI model docs list the same 1.05M token context window, 128K max output, and major tool support as the larger GPT-5.6 variants.
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