Model comparison
DeepSeek V4 Pro vs Grok 4.20 Reasoning
Compare DeepSeek V4 Pro vs Grok 4.20 Reasoning API pricing: input/output token costs, cache pricing, context windows, workload estimates, and routing fit.
DeepSeek V4 Pro
deepseek · deepseek-v4-pro
- Input
- $1.32
- Output
- $3.96
- Context
- 1M
Grok 4.20 Reasoning
xai · grok-4.20-0309-reasoning
- Input
- $1.25
- Output
- $2.5
- Context
- 1M
Quick take
Grok 4.20 Reasoning has the lower input price at $1.25 per 1M input tokens. Grok 4.20 Reasoning is cheaper for the example blended workload below. DeepSeek V4 Pro has the larger context window at 1M tokens.
Choose DeepSeek V4 Pro if...
- DeepSeek V4 Pro gives more room for long generated answers, reports, or code output.
Choose Grok 4.20 Reasoning if...
- Grok 4.20 Reasoning is the better default for cost-sensitive traffic and repeated high-volume calls.
- Grok 4.20 Reasoning is required if images, screenshots, or visual documents are part of the workflow.
Example workload cost
Estimates use input tokens plus 20% output tokens. They exclude provider discounts, cache hits, and tool/search surcharges.
| Workload | DeepSeek V4 Pro | Grok 4.20 Reasoning | Cheaper |
|---|---|---|---|
| 1M input + 200K output | $2.11 | $1.75 | Grok 4.20 Reasoning |
| 10M input + 2M output | $21.12 | $17.50 | Grok 4.20 Reasoning |
| 100M input + 20M output | $211.20 | $175.00 | Grok 4.20 Reasoning |
Context, output, and capability fit
DeepSeek V4 Pro provides the larger context window. Check max output separately when the task needs long reports, code generation, or full-document rewrites.
- DeepSeek V4 Pro max output
- 384K
- Grok 4.20 Reasoning max output
- n/a
- DeepSeek V4 Pro features
- prompt caching, function calling
- Grok 4.20 Reasoning features
- prompt caching, function calling, vision
Risk notes for DeepSeek V4 Pro
- No major capability risk is flagged in this snapshot, but provider pages should still be verified before production routing.
Risk notes for Grok 4.20 Reasoning
- No major capability risk is flagged in this snapshot, but provider pages should still be verified before production routing.
Routing tags
frontierpremiumcodingreasoningagentsopen-weightlong-contextcache-friendlyraglocal-openmultimodal