Calculate the cost of using grok-4.20-reasoning from Perplexity for your AI applications
Pricing data last updated:
Mode: Responses
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grok-4.20-reasoning is a responses model from Perplexity, one of 55 responses models they offer. It is priced at $1.25 per 1M input tokens and $2.50 per 1M output tokens, ranking 55 out of 171 responses models by cost and cheaper than 65% of models in this category. grok-4.20-reasoning supports function calling, web search.
Note: Use the interactive calculator above to estimate costs for your specific usage patterns.
At $1.25 per 1M input tokens and $2.50 per 1M output tokens, grok-4.20-reasoning ranks 55 out of 171 responses models by input cost. It is more affordable compared to the median of $2.00 for responses models, and is cheaper than 65% of models in this category.
grok-4.20-reasoning is one of 55 Perplexity responses models, with support for function calling, web search.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs grok-4.20-reasoning |
|---|---|---|---|---|
| gpt-5-codex | OpenAI | $1.25 | $10.00 | 0% |
| gpt-5.1-codex-max | OpenAI | $1.25 | $10.00 | 0% |
| gpt-5.1-codex | OpenAI | $1.25 | $10.00 | 0% |
Similar responses models from other providers
No. grok-4.20-reasoning costs $1.25 per 1M input tokens while gpt-5-codex costs $1.25 per 1M input tokens, making gpt-5-codex 0% more affordable for input. However, grok-4.20-reasoning may offer different capabilities or performance characteristics that justify the price difference.
grok-4.20-reasoning input pricing is $1.25 per 1M tokens, which is 37% below the median of $2.00 for responses models. It ranks 55 out of 171 responses models by input cost, making it cheaper than 65% of models in this category. For output, it costs $2.50 per 1M tokens compared to the median of $11.00.
Among Perplexity's 55 responses models, grok-4.20-reasoning ranks 22 by input cost.
The most comparable responses models to grok-4.20-reasoning are: gpt-5-codex from OpenAI ($1.25/1M input tokens); gpt-5.1-codex-max from OpenAI ($1.25/1M input tokens); gpt-5.1-codex from OpenAI ($1.25/1M input tokens); grok-4.20-multi-agent-beta-0309 from xAI ($1.25/1M 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.
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grok-4.20-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 $1.25 and generating 1M output tokens costs $2.50.