Grok 4.20 API Pricing / Price per 1M tokens
Grok / X.AI • API Price Comparison
Also known as: x-ai-grok-4-20 · x ai grok 4 20 · xaigrok420 · x-ai-grok4-20 · x ai grok4 20 · grok-4.20 · grok4.20
API pricing and token costs at a glance
Updated on · Published currencies / per 1M tokens; cheapest ranked by input
| Channel | Input / 1M | Output / 1M | Cache read / 1M | Updated / verified on |
|---|---|---|---|---|
| Official | No official quote recorded | |||
| OpenRouterLowest input | USD 1.25 | USD 2.5 | USD 0.2 | 2026-10-31 |
Metered API cost = input tokens / 1M × input rate + output tokens / 1M × output rate. At the lowest-input-rate channel, 1M input plus 250K output tokens costs approximately USD 1.875. This excludes caching, tools, retries and other service fees; the lowest input rate does not guarantee the lowest total bill.
— means the price or date is not recorded. Cross-currency ranking uses exchange rates.
Grok 4.20 is a large language model by Grok / X.AI with a 2M-token context window. Across the 1 API channels tracked here, input pricing ranges from $1.25 per 1M input tokens; the cheapest is OpenRouter at $1.25 per 1M input tokens. None of the tracked channels are directly reachable from mainland China without a proxy or VPN. Prices are collected daily from official provider pages and every tracked channel, then cross-checked by a data-accuracy audit.
Model performance benchmarks
Scores retain their original benchmark, version and metric. We do not combine them into a site-wide score; results from different versions are not directly comparable.
| Channel | Type | Input / 1M | Output / 1M | Rate Limit | China | vs Official | |
|---|---|---|---|---|---|---|---|
OpenRouter6 variants💰 Best Price | Aggregator | $1.25 | $2.50 | - | - | - | |
Show all price variants for this channelOpenRouter Auto / default routeDefault $1.25 / $2.50 per 1M default_route Cheapest endpoint: xAI $1.25 / $2.50 per 1M cheapest_endpoint xAI | x-ai/grok-4.20-20260309 $1.25 / $2.50 per 1M upstream_provider xAI | x-ai/grok-4.20-20260309 $1.25 / $2.50 per 1M upstream_provider xAI | x-ai/grok-4.20-20260309 $2.50 / $5.00 per 1M upstream_provider xAI | x-ai/grok-4.20-20260309 $2.50 / $5.00 per 1M upstream_provider | |||||||
| Usage Level | Tokens/Month | OpenRouter |
|---|---|---|
| 🐣 Light | 0.1M in + 0.1M out | $0.25 |
| 📊 Medium | 1.0M in + 0.5M out | $2.50 |
| 🚀 Heavy | 10.0M in + 5.0M out | $25.00 |
| 🏢 Enterprise | 100.0M in + 50.0M out | $250.00 |
Frequently asked questions about grok-4.20
How much does the Grok 4.20 API cost?
The lowest input rate is USD 1.25 per 1M tokens; output on that channel is USD 2.5 per 1M tokens.
Which channel has the cheapest Grok 4.20 API?
OpenRouter has the lowest input rate: USD 1.25 per 1M tokens. Cross-currency ranking uses exchange rates; compare output and cache prices separately.
What is the Grok 4.20 cache-read price?
OpenRouter: USD 0.2 per 1M cache-read tokens.
When was Grok 4.20 pricing last updated?
Updated on 2026-10-31. This is the latest recorded price update or verification; see the table for individual channel dates.
Is there a free Grok 4.20 API?
No available recorded channel lists both input and output at zero. Missing prices, free cache reads or a free chat tier do not establish a free API; check provider terms for trial credits.
How do I calculate Grok 4.20 token costs and monthly spend?
Metered API cost = input tokens / 1M × input rate + output tokens / 1M × output rate. At the lowest-input-rate channel, 1M input plus 250K output tokens costs approximately USD 1.875. This excludes caching, tools, retries and other service fees; the lowest input rate does not guarantee the lowest total bill.
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