DeepSeek V3.2 (Reasoner) vs Grok 4.20
Pricing, context window, and benchmark comparison · Last updated April 2026
DeepSeek V3.2 (Reasoner) is cheaper than Grok 4.20 at $0.28/1M/1M vs $2.00/1M/1M input tokens — a 7.1x cost difference. DeepSeek V3.2 (Reasoner) scores higher on quality benchmarks (ELO 1385). Choose DeepSeek V3.2 (Reasoner) for cost-sensitive workloads; both are strong choices depending on your budget.
Which is cheaper: DeepSeek V3.2 (Reasoner) or Grok 4.20?
DeepSeek V3.2 (Reasoner) is the cheaper option at $0.28/1M per 1M input tokens, compared to $2.00/1M for Grok 4.20. That is a 7.1x cost difference on input tokens. Output pricing follows a similar pattern: DeepSeek V3.2 (Reasoner) charges $0.42/1M/1M vs $6.00/1M/1M for Grok 4.20.
Which has better quality: DeepSeek V3.2 (Reasoner) or Grok 4.20?
Based on LMSYS Chatbot Arena rankings, DeepSeek V3.2 (Reasoner) achieves a higher ELO score (1385 vs 1380), suggesting stronger performance on open-ended tasks. DeepSeek V3.2 (Reasoner) excels at o-series-class reasoning at a fraction of the price. Grok 4.20 is known for 2m token context window — tied for largest available.
Which should you choose: DeepSeek V3.2 (Reasoner) or Grok 4.20?
- → o-series-class reasoning at a fraction of the price
- → Up to 64K output tokens for long chain-of-thought
- → Open weights
- → 2M token context window — tied for largest available
- → Real-time X (Twitter) data access
- → Strong reasoning and multi-agent variants
Frequently Asked Questions
Which is cheaper: DeepSeek V3.2 (Reasoner) or Grok 4.20?
DeepSeek V3.2 (Reasoner) is cheaper at $0.28/1M per 1M input tokens, making it 7.1x more affordable.
Which has better quality: DeepSeek V3.2 (Reasoner) or Grok 4.20?
DeepSeek V3.2 (Reasoner) scores higher on the LMSYS Chatbot Arena with an ELO of 1385, suggesting better overall quality for most tasks.
Which has a larger context window: DeepSeek V3.2 (Reasoner) or Grok 4.20?
Grok 4.20 has a larger context window at 2000K tokens.
Should I choose DeepSeek V3.2 (Reasoner) or Grok 4.20?
Choose DeepSeek V3.2 (Reasoner) if cost is the priority. Choose DeepSeek V3.2 (Reasoner) if benchmark quality is most important. Consider your specific use case: DeepSeek V3.2 (Reasoner) is best for reasoning and math, while Grok 4.20 excels at reasoning and research.
Is DeepSeek V3.2 (Reasoner) or Grok 4.20 open source?
DeepSeek V3.2 (Reasoner) is open source. Grok 4.20 is proprietary.