GPT-6 Luna vs GPT-6.1 Sol
Price, context window & benchmark comparison
VS
Compare different models
Verdict: GPT-6 Luna is 20.0× cheaper than GPT-6.1 Sol on a typical 3:1 input/output mix. GPT-6.1 Sol scores higher on the Artificial Analysis Intelligence Index (54.5 vs 27.8).
| GPT-6 Luna | GPT-6.1 Sol | |
|---|---|---|
| Input price / 1M | $0.10 | $2.00 |
| Output price / 1M | $0.50 | $10.00 |
| Blended price (3:1) | $0.20 | $4.00 |
| Cached input / 1M | $0.01 | $0.10 |
| Context window | 1.1M | 1.1M |
| Max output | 128K | 128K |
| Intelligence index | 27.8 | 54.5 |
| Coding index | — | — |
| Providers | 7 | 9 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-22 | 2026-09-29 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GPT-6 Luna or GPT-6.1 Sol?
GPT-6 Luna is 20.0× cheaper than GPT-6.1 Sol on a typical 3:1 input/output mix.
GPT-6 Luna vs GPT-6.1 Sol: which has a bigger context window?
GPT-6 Luna: 1,050,000 tokens. GPT-6.1 Sol: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-6 Luna ≈ $450.00, GPT-6.1 Sol ≈ $9,000.
More comparisons
GPT-6 Luna vs GPT-6.1 TerraGPT-6 Luna vs GPT-6.1 Terra ProGPT-6 Luna vs Kimi K3.1 ProGPT-6 Luna vs MiniMax M3.1 FlashGPT-6 Luna vs DeepSeek V4.1 Flash 1017GPT-6 Luna vs Nemotron 3.5 Super VLGPT-6 Luna vs Gemini 4 ArgonGPT-6 Luna vs Claude Haiku 5.5GPT-6 Luna vs Nano Banana 2.1GPT-6 Luna vs Mistral Large 4GPT-6 Luna vs GPT-6.1 Sol ProGPT-6 Luna vs Claude Sonnet 5.5GPT-6 Luna vs GLM 5.3 PrimeGPT-6 Luna vs Qwen3.8 Max PrimeGPT-6 Luna vs Command A+GPT-6 Luna vs GPT-6 Luna ProGPT-6.1 Sol vs GPT-6.1 TerraGPT-6.1 Sol vs GPT-6.1 Terra ProGPT-6.1 Sol vs Kimi K3.1 ProGPT-6.1 Sol vs MiniMax M3.1 FlashGPT-6.1 Sol vs DeepSeek V4.1 Flash 1017GPT-6.1 Sol vs Nemotron 3.5 Super VLGPT-6.1 Sol vs Gemini 4 ArgonGPT-6.1 Sol vs Claude Haiku 5.5