Calculate the cost of using grok-4.20-beta-0309-reasoning from xAI for your AI applications
Pricing data last updated:
Mode: Chat
Max: 2,000,000 tokens
Max: 2,000,000 tokens
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grok-4.20-beta-0309-reasoning is a chat model from xAI, one of 41 chat models they offer. It is priced at $2.00 per 1M input tokens and $6.00 per 1M output tokens, ranking 2142 out of 2661 chat models by cost and cheaper than 19% of models in this category. grok-4.20-beta-0309-reasoning supports vision, function calling, reasoning, web search, prompt caching — one of only 3 chat models with this combination. Its 2,000K-token context window is in the top 1% among chat models.
Note: Use the interactive calculator above to estimate costs for your specific usage patterns.
Use the maximum token limits shown above to understand the model's capacity. This model can handle up to 2,000,000 input tokens. The maximum output length is 2,000,000 tokens.
At $2.00 per 1M input tokens and $6.00 per 1M output tokens, grok-4.20-beta-0309-reasoning ranks 2142 out of 2661 chat models by input cost. It is more expensive compared to the median of $0.50 for chat models, and is cheaper than 19% of models in this category.
grok-4.20-beta-0309-reasoning is one of 41 xAI chat models, one of only 3 chat models combining function calling, prompt caching, reasoning, vision, web search. its 2,000K-token context window places it in the top 1% of chat models.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs grok-4.20-beta-0309-reasoning |
|---|---|---|---|---|
| gpt-5.6-terra | Azure | $2.50 | $15.00 | +25% |
| claude-sonnet-5 | Anthropic | $2.00 | $10.00 | 0% |
| gemini-3-pro-preview | Vertex AI | $2.00 | $12.00 | 0% |
Similar chat models from other providers
Yes. grok-4.20-beta-0309-reasoning costs $2.00 per 1M input tokens compared to gpt-5.6-terra's $2.50 per 1M input tokens, making it 25% more affordable. Both are chat models and share support for vision, function calling, reasoning, web search, prompt caching, structured output.
grok-4.20-beta-0309-reasoning input pricing is $2.00 per 1M tokens, which is 300% above the median of $0.50 for chat models. It ranks 2142 out of 2661 chat models by input cost, making it cheaper than 19% of models in this category. For output, it costs $6.00 per 1M tokens compared to the median of $1.44.
Among xAI's 41 chat models, grok-4.20-beta-0309-reasoning ranks 30 by input cost. Its combination of function calling, prompt caching, reasoning, vision, web search is shared by only 2 other chat models.
The most comparable chat models to grok-4.20-beta-0309-reasoning are: gpt-5.6-terra from Azure ($2.50/1M input tokens); claude-sonnet-5 from Anthropic ($2.00/1M input tokens); gemini-3-pro-preview from Vertex AI ($2.00/1M input tokens); gemini-3.1-pro-preview from Vertex AI ($2.00/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.
grok-4.20-beta-0309-reasoning supports up to 2,000,000 input tokens, placing it in the top 1% of chat models by context window size (rank 18 of 2482). This makes it suitable for processing long documents, extensive code repositories, or maintaining detailed conversation histories.
grok-4.20-beta-0309-reasoning is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $2.00 and generating 1M output tokens costs $6.00.