DeepSeek V3 (March 2024)vsGPT OSS 20B
GPT OSS 20B is cheaper than DeepSeek V3 (March 2024) at $0.02/M vs $0.14/M input tokens.
| Spec | DeepSeek V3 (March 2024) | GPT OSS 20B |
|---|---|---|
| Input price | $0.14/M tokens | $0.02/M tokens |
| Output price | $0.28/M tokens | $0.1/M tokens |
| Context window | 128K tokens | 131K tokens |
| Parameters | Not disclosed | 21B (3.6B active) |
| Weights | Open | Open |
| Free API (OpenRouter) | No | No |
| Released | Mar 2024 | Aug 2025 |
Our Verdict
DeepSeek V3 (March 2024)
GPT OSS 20B
Not enough votes to call it. On the specs, nothing separates them.
Too close to call
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
DeepSeek V3 (March 2024)
Input
$0.14
Output
$0.28
GPT OSS 20B
Input
$0.02
7.0× cheaper
Output
$0.10
2.8× cheaper
GPT OSS 20B is cheaper on both: 7.0× input, 2.8× output.
Where to run it
17 hosts, cheapest first
Per million tokens. Prices and uptime via OpenRouter, checked 11 Sep 2026.
Writing DNA
Style Comparison
Similarity
41%
DeepSeek V3 (March 2024) uses 5.8x more emoji
DeepSeek V3 (March 2024)
GPT OSS 20B
60%Vocabulary54%
20wSentence Length17w
0.71Hedging0.26
6.7Bold5.9
5.8Lists3.3
0.59Emoji0.10
1.29Headings0.75
0.09Transitions0.32
Based on 28 + 21 text responses
Research
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