OpenAI Codex MinivsGrok 4.20 Multi-Agent Beta
OpenAI Codex Mini is cheaper than Grok 4.20 Multi-Agent Beta at $1.5/M vs $2/M input tokens.
| Spec | OpenAI Codex Mini | Grok 4.20 Multi-Agent Beta |
|---|---|---|
| Input price | $1.5/M tokens | $2/M tokens |
| Output price | $6/M tokens | $6/M tokens |
| Context window | 200K tokens | 2.0M tokens |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | May 2025 | Mar 2026 |
Our Verdict
Grok 4.20 Multi-Agent Beta
OpenAI Codex MiniRunner-up
Not enough votes to call it. On the specs, Grok 4.20 Multi-Agent Beta has the edge: bigger model tier, newer, bigger context window.
Slight edge
API pricing
Cost per 1M tokens
OpenAI Codex Mini
Input
$1.50
1.3× cheaper
Output
$6.00
Grok 4.20 Multi-Agent Beta
Input
$2.00
Output
$6.00
Where to run it
1 host
OpenAI Codex Mini
No hosts listed on OpenRouter.
Grok 4.20 Multi-Agent Beta1 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Research
What we learned reading every model
FAQ
Common questions
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