ModelsxAI
Grok 4.20
Context
2M
tokens
Released
Mar 31, 2026
on OpenRouter
Pricing
Price per million tokens
Input $/MTok
$1.25
OpenRouter · Aug 20, 2026
Output $/MTok
$2.50
OpenRouter · Aug 20, 2026
Cache read $/MTok
$0.2
OpenRouter
| Source | Tracked slug | In $/MTok | Out $/MTok | Cache read | Cache write | Context | Effective | Last Δ (in) |
|---|---|---|---|---|---|---|---|---|
| OpenRouter | x-ai/grok-4.20 | $1.25 | $2.50 | $0.2 | — | 2M | Aug 20, 2026 | — |
| models.dev | xai/grok-4.20-0309-non-reasoning | $1.25 | $2.50 | $0.2 | — | 1M | Aug 20, 2026 | 37.5% |
| llm-prices.com | grok-4.20-0309-non-reasoning-200k | $2.50 | $5.00 | $0.4 | — | — | Aug 19, 2026 | 100% |
latest tracked price per source · Δ = most recent input-price move within that source
3 sources tracking
Input $/MTok
Output $/MTok
per-source step lines · $/MTok
history since Jul 8, 2026
Specs
Context & availability
| Provider | xAI |
|---|---|
| Context window | 2M tokens |
| Listed on OpenRouter | Mar 31, 2026 |
| Tracked price sources | OpenRouter · models.dev · llm-prices.com |
| OpenRouter slugs | x-ai/grok-4.20 · x-ai/grok-4.20-20260309 |
source: OpenRouter model catalog + tracked price feeds
id: grok-4-20
Usage
Share of OpenRouter tokens
90-day daily
usage share pending — this model isn't in the tracked OpenRouter model rankings yet
Benchmarks
Benchmark results
| Benchmark | Configuration | Score | Date | Source |
|---|---|---|---|---|
no benchmark results attributed to Grok 4.20 yet | ||||
scores as published by each benchmark; configurations differ — compare within a row's benchmark only
Alternatives
Similar models
| # | Model | Tokens/day | 7d Δ | Head-to-head |
|---|---|---|---|---|
| 1 | DeepSeek V4 FlashDeepSeek | 2.7T | 23.9% | vs Grok 4.20 |
| 2 | Hy3Tencent | 1.3T | 17.8% | vs Grok 4.20 |
| 5 | Nemotron 3 UltraNVIDIA | 733B | 45.1% | vs Grok 4.20 |
| 7 | GLM 5.2Z.ai | 533B | 4.2% | vs Grok 4.20 |
ranked by OpenRouter usage-rank proximity
snapshot Aug 20, 2026
FAQ
Grok 4.20 FAQ
- How much does Grok 4.20 cost per token?
- Grok 4.20 is priced at $1.25 per million input tokens and $2.50 per million output tokens, per OpenRouter as of Aug 20, 2026.
- What is Grok 4.20's context window?
- Grok 4.20 supports a context window of up to 2M tokens, per xAI.
- What are the alternatives to Grok 4.20?
- By OpenRouter usage, comparable models include DeepSeek V4 Flash, Hy3, and Nemotron 3 Ultra. Side-by-side comparisons are linked in the alternatives table.
Alerts
Track Grok 4.20
Email me when Grok 4.20's price moves or it gets deprecated.