Model comparison
Grok 4.20 Reasoning vs Grok 4.20 Multi-Agent
Compare Grok 4.20 Reasoning vs Grok 4.20 Multi-Agent API pricing: input/output token costs, cache pricing, context windows, workload estimates, and routing fit.
Grok 4.20 Reasoning
xai · grok-4.20-0309-reasoning
- Input
- $1.25
- Output
- $2.5
- Context
- 1M
Grok 4.20 Multi-Agent
xai · grok-4.20-multi-agent-0309
- 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. Grok 4.20 Reasoning has the larger context window at 1M tokens.
Choose Grok 4.20 Reasoning if...
- Grok 4.20 Reasoning is the better default for cost-sensitive traffic and repeated high-volume calls.
Choose Grok 4.20 Multi-Agent if...
- Grok 4.20 Multi-Agent is the better default for cost-sensitive traffic and repeated high-volume calls.
Example workload cost
Estimates use input tokens plus 20% output tokens. They exclude provider discounts, cache hits, and tool/search surcharges.
| Workload | Grok 4.20 Reasoning | Grok 4.20 Multi-Agent | Cheaper |
|---|---|---|---|
| 1M input + 200K output | $1.75 | $1.75 | Grok 4.20 Reasoning |
| 10M input + 2M output | $17.50 | $17.50 | Grok 4.20 Reasoning |
| 100M input + 20M output | $175.00 | $175.00 | Grok 4.20 Reasoning |
Context, output, and capability fit
Grok 4.20 Reasoning provides the larger context window. Check max output separately when the task needs long reports, code generation, or full-document rewrites.
- Grok 4.20 Reasoning max output
- 1M
- Grok 4.20 Multi-Agent max output
- 1M
- Grok 4.20 Reasoning features
- prompt caching, function calling
- Grok 4.20 Multi-Agent features
- prompt caching, function calling
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.
Risk notes for Grok 4.20 Multi-Agent
- No major capability risk is flagged in this snapshot, but provider pages should still be verified before production routing.
Routing tags
frontierreasoningagentslong-contextmultimodalragmulti-agent