GPT-5.2 ProvsSolar Pro 3
Solar Pro 3 is cheaper than GPT-5.2 Pro at $0/M vs $21/M input tokens.
| Spec | GPT-5.2 Pro | Solar Pro 3 |
|---|---|---|
| Input price | $21/M tokens | Free |
| Output price | $168/M tokens | Free |
| Context window | 400K tokens | 128K tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Dec 2025 | Jan 2026 |
Our Verdict
GPT-5.2 Pro
Solar Pro 3Runner-up
Not enough votes to call it. On the specs, GPT-5.2 Pro has the edge: bigger model tier, bigger context window, major provider backing.
Too close to call
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
GPT-5.2 Pro
Input
$21.00
Output
$168.00
Solar Pro 3
Input
$0.000
Output
$0.000
Where to run it
1 host
GPT-5.2 Pro1 host
Solar Pro 3
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
Writing DNA
Style Comparison
Similarity
65%
Solar Pro 3 uses 17.3x more emoji
GPT-5.2 Pro
Solar Pro 3
62%Vocabulary50%
19wSentence Length21w
0.39Hedging0.42
8.6Bold6.5
3.8Lists2.2
0.00Emoji0.17
1.17Headings0.56
0.02Transitions0.12
Based on 10 + 18 text responses
Research
What we learned reading every model
FAQ
Common questions
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