OpenAI Codex MinivsGemini 2.5 Flash Preview 05-20 (thinking)
Gemini 2.5 Flash Preview 05-20 (thinking) is cheaper than OpenAI Codex Mini at $0.15/M vs $1.5/M input tokens.
| Spec | OpenAI Codex Mini | Gemini 2.5 Flash Preview 05-20 (thinking) |
|---|---|---|
| Input price | $1.5/M tokens | $0.15/M tokens |
| Output price | $6/M tokens | $3.5/M tokens |
| Context window | 200K tokens | 1.0M tokens |
| Released | May 2025 | May 2025 |
Our Verdict
OpenAI Codex Mini
Gemini 2.5 Flash Preview 05-20 (thinking)
Not enough votes to call it. On the specs, nothing separates them.
Too close to call
API pricing
Cost per 1M tokens
OpenAI Codex Mini
Input
$1.50
Output
$6.00
Gemini 2.5 Flash Preview 05-20 (thinking)
Input
$0.15
10× cheaper
Output
$3.50
1.7× cheaper
Gemini 2.5 Flash Preview 05-20 (thinking) is cheaper on both — 10× input, 1.7× output
Research
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FAQ
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