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Grok 4.20 (Reasoning) API Price
xAI · grok-4.20-0309-reasoning
| Billing | USD · 百万 tokens |
|---|---|
| Context Window | 1000K tokens |
| Modalities | 文本 / 图像 |
| Deep Thinking | Supported |
| Verified Date | 2026-09-04 |
| Official pricing page | docs.x.ai/developers/models/grok-4.20-0309-reasoning ↗ |
Grok 4.20 高性能推理档;不支持 logprobs。
Pricing Tiers
| Tier | Price | Description |
|---|---|---|
| < 200k prompt tokens | in $1.25 / out $2.5 /百万 tokens | cached input $0.20/1M |
| ≥ 200k prompt tokens(长上下文) | in $2.5 / out $5 /百万 tokens | cached input $0.40/1M |
| Batch API(-20%) | in $1 / out $2 /百万 tokens | 官方声明 20% 折扣,数值按 8 折换算 |
Monthly Cost Estimate
30 days · no cache hits · list price
Free quotas, tiered pricing, batch discounts, and time-based pricing are not included; refer to official bills.
xAI Related Models
- Grok 4.6 $2 / $6
- Grok 4.5 $2 / $6
- Grok 4.3 $1.25 / $2.5
- Grok 4.20 (Non-Reasoning) $1.25 / $2.5
- Grok 4.20 Multi-Agent $1.25 / $2.5
- Grok Build 0.1(原 Grok Code Fast) $1 / $2
- Grok Imagine Image 2.0 $0.01 / $0.04
- Grok Imagine Image $0 / $0.02
- Grok Imagine Image Quality $0.01 / $0.05
- Grok Imagine Video $0.05 /秒
- Grok Imagine Video 1.5 $0.01 / $0.08
- Grok Text to Speech Tiered
- Grok Speech to Speech(实时语音) $0 /分钟
- Grok Speech to Text $0.2 /小时
FAQ
How much does the Grok 4.20 (Reasoning) API cost?
Input $1.25/百万 tokens, output $2.5/百万 tokens
How large is the Grok 4.20 (Reasoning) context window?
1000K tokens. Handles long documents, multi-turn conversations and large-scale inputs.
Which input modalities does Grok 4.20 (Reasoning) support?
文本 / 图像. Supports deep thinking / reasoning.
What is the approximate monthly cost of Grok 4.20 (Reasoning)?
Depends on volume: light use (1M input + 300K output per day) ≈ $60/month; medium (5M + 1.5M) ≈ $300/month; heavy agents (10M + 3M) ≈ $600/month. Cache hits, batch discounts and tiered pricing can lower this further.
How does Grok 4.20 (Reasoning) compare with peers on value?
xAI Grok 4.20 (Reasoning) is priced low among comparable models; compare against similar models. See the Pricemon market table for a full comparison.
What use cases suit Grok 4.20 (Reasoning)?
Suited to applications in its domain.The long context supports deep-analysis scenarios.
Does Grok 4.20 (Reasoning) have a free tier?
Check xAI's official pricing page for the latest free quota, trial policy and tiered pricing. Policies differ by vendor and change over time.