GPT-5.6 Luna Pro is cheaper than Grok 3 Beta at $1/M vs $2/M input tokens.
| Spec | GPT-5.6 Luna Pro | Grok 3 Beta |
|---|---|---|
| Input price | $1/M tokens | $2/M tokens |
| Output price | $6/M tokens | $4/M tokens |
| Context window | 1.1M tokens | 131K tokens |
| Released | Jul 2026 | Apr 2025 |
Not enough votes to call it. On the specs, nothing separates them.
GPT-5.6 Luna Pro wins input (2.0× cheaper)·Grok 3 Beta wins output (1.5× cheaper)
GPT-5.6 Luna Pro uses 53.7x more emoji
GPT-5.6 Luna Pro is cheaper than Grok 3 Beta at $1/M vs $2/M input tokens.
| Spec | GPT-5.6 Luna Pro | Grok 3 Beta |
|---|---|---|
| Input price | $1/M tokens | $2/M tokens |
| Output price | $6/M tokens | $4/M tokens |
| Context window | 1.1M tokens | 131K tokens |
| Released | Jul 2026 | Apr 2025 |
Not enough votes to call it. On the specs, nothing separates them.
GPT-5.6 Luna Pro wins input (2.0× cheaper)·Grok 3 Beta wins output (1.5× cheaper)
GPT-5.6 Luna Pro uses 53.7x more emoji