OpenAI o3vsOptimus Alpha
OpenAI o3 is the newer model, released after Optimus Alpha.
| Spec | OpenAI o3 | Optimus Alpha |
|---|---|---|
| Input price | $10/M tokens | — |
| Output price | $40/M tokens | — |
| Context window | — | 1.0M tokens |
| Parameters | Not disclosed | Not disclosed |
| Weights | Closed | — |
| Free API (OpenRouter) | No | — |
| Released | Apr 2025 | Apr 2025 |
Our Verdict
OpenAI o3
Optimus AlphaRunner-up
Not enough votes to call it. On the specs, OpenAI o3 has the edge: bigger model tier, major provider backing.
Optimus Alpha takes Reasoning.
Too close to call
API pricing
Cost per 1M tokens
OpenAI o3
Input
$10.00
Output
$40.00
Optimus Alpha
Input
—
Output
—
Where to run it
1 host
OpenAI o31 host
Optimus Alpha
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
56%
Optimus Alpha uses 13.2x more bold
OpenAI o3
Optimus Alpha
70%Vocabulary63%
14wSentence Length18w
0.27Hedging0.55
0.6Bold7.7
2.8Lists5.7
0.00Emoji0.00
0.32Headings0.30
0.10Transitions0.27
Based on 19 + 10 text responses
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FAQ
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