GPT-6 Luna vs Hermes 4 405B
Price, context window & benchmark comparison
VS
Compare different models
Verdict: GPT-6 Luna is 7.5× cheaper than Hermes 4 405B on a typical 3:1 input/output mix. GPT-6 Luna has the larger context window (1.1M vs 131K).
| GPT-6 Luna | Hermes 4 405B | |
|---|---|---|
| Input price / 1M | $0.10 | $1.00 |
| Output price / 1M | $0.50 | $3.00 |
| Blended price (3:1) | $0.20 | $1.50 |
| Cached input / 1M | $0.01 | — |
| Context window | 1.1M | 131K |
| Max output | 128K | 118K |
| Intelligence index | 37.3 | — |
| Coding index | — | — |
| Providers | 7 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | No |
| Released | 2026-09-22 | 2025-08-26 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GPT-6 Luna or Hermes 4 405B?
GPT-6 Luna is 7.5× cheaper than Hermes 4 405B on a typical 3:1 input/output mix.
GPT-6 Luna vs Hermes 4 405B: which has a bigger context window?
GPT-6 Luna: 1,050,000 tokens. Hermes 4 405B: 131,072 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-6 Luna ≈ $450.00, Hermes 4 405B ≈ $3,500.
More comparisons
GPT-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 Luna vs GPT-6 Sol ProGPT-6 Luna vs GPT-6 SolGPT-6 Luna vs Claude Opus 5.5GPT-6 Luna vs MiMo-V2.6-Pro-UltraSpeedGPT-6 Luna vs MiMo-V2.6-FlashGPT-6 Luna vs Grok 4.7GPT-6 Luna vs Qwen3.8 Omni FlashGPT-6 Luna vs GLM 5.3 FlashXGPT-6 Luna vs DeepSeek V4.1 FlashGPT-6 Luna vs GPT-6 AstraGPT-6 Luna vs GPT-6 Astra ProGPT-6 Luna vs Qwen3.8 Max (0902)Hermes 4 405B vs GLM 5.3 PrimeHermes 4 405B vs Qwen3.8 Max PrimeHermes 4 405B vs Command A+Hermes 4 405B vs GPT-6 Luna ProHermes 4 405B vs GPT-6 Sol ProHermes 4 405B vs GPT-6 SolHermes 4 405B vs Claude Opus 5.5Hermes 4 405B vs MiMo-V2.6-Pro-UltraSpeed