GPT-4.1vsOptimus Alpha
GPT-4.1 has a larger context window than Optimus Alpha (1.0M tokens vs 1.0M tokens).
| Spec | GPT-4.1 | Optimus Alpha |
|---|---|---|
| Input price | $2/M tokens | — |
| Output price | $8/M tokens | — |
| Context window | 1.0M tokens | 1.0M tokens |
| Parameters | Not disclosed | Not disclosed |
| Weights | Closed | — |
| Free API (OpenRouter) | No | — |
| Released | Apr 2025 | Apr 2025 |
Our Verdict
GPT-4.1
Optimus AlphaRunner-up
Not enough votes to call it. On the specs, GPT-4.1 has the edge: bigger model tier, major provider backing.
Too close to call
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
GPT-4.1
Input
$2.00
Output
$8.00
Optimus Alpha
Input
—
Output
—
Where to run it
2 hosts
Optimus Alpha
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 11 Sep 2026.
Writing DNA
Style Comparison
Similarity
56%
GPT-4.1 uses 21.9x more emoji
GPT-4.1
Optimus Alpha
58%Vocabulary63%
19wSentence Length18w
0.49Hedging0.55
8.8Bold7.7
5.8Lists5.7
0.22Emoji0.00
1.01Headings0.30
0.10Transitions0.27
Based on 27 + 10 text responses
Research
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FAQ
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