Grok API cost calculator
Grok-3 API: $76.00/mo | Plugsky flat: $50/mo
Based on 10M input + 5M output tokens/mo on Grok-3. Save 34% with Plugsky Starter plan.
How Grok API pricing works
xAI charges per million tokens (MTok) consumed. Each API request consumes input tokens (the prompt you send) and output tokens (the response generated). Token count depends on message length and model — longer prompts and responses cost more.
Grok-3 is xAI's flagship model, priced at $2.00/MTok input and $8.00/MTok output. Grok-2 is the previous generation at $0.80/MTok input and $2.00/MTok output. Both models have rate limits tied to your API tier.
Your total monthly cost = (input_tokens × input_price) + (output_tokens × output_price). At scale, these costs add up quickly — a team doing 100M input + 50M output tokens/month on Grok-3 would pay $600/mo before any rate-limit overages.
How Plugsky pricing compares
Plugsky takes a different approach: flat monthly plans with no per-token metering. All self-serve plans include unlimited API calls to every model in the tier:
- Hobby — $20/mo: plugsky-micro, plugsky-lite, plugsky-nano (ideal for prototyping and light usage)
- Starter — $50/mo: adds plugsky-plus, plugsky-pro (good for small teams and moderate workloads)
- Builder — $100/mo: adds plugsky-max, plugsky-maverick, vision models (best for production apps)
- Scale — $500/mo: adds frontier models, larger context windows, priority routing
Most teams using more than 10M tokens/month on Grok-3 will pay less with Plugsky's Starter or Builder plan.
When to choose each
Choose Grok API if: you need xAI-specific models exclusively, you have very low token volumes (under a few million/month), or your architecture is tightly coupled to xAI's platform features.
Choose Plugsky if: you want predictable monthly costs, need access to multiple model families (31+ models), or are doing moderate-to-heavy token volumes. Plugsky's OpenAI-compatible API means zero code changes to switch.
Frequently asked questions
How does Grok API pricing work?
xAI charges per million tokens (MTok). Grok-3 costs $2/MTok input and $8/MTok output. Grok-2 costs $0.80/MTok input and $2/MTok output. You are billed monthly based on your total token usage across input and output.
How does Plugsky pricing compare to Grok API?
Plugsky offers flat monthly plans ($20 Hobby, $50 Starter, $100 Builder, $500 Scale) with unlimited API calls and no per-token metering. For moderate to heavy usage, Plugsky is significantly cheaper than Grok API pay-per-token pricing.
At what token volume does Plugsky become cheaper than Grok?
Plugsky becomes cheaper than Grok API at roughly 5-10 million total tokens per month for Grok-3, and around 20-30 million per month for Grok-2. The exact break-even depends on your input-to-output ratio (output is more expensive, so output-heavy workloads break even faster).
Is the Grok API cost calculator free?
Yes. This tool is completely free to use with no signup required. Sign up for unlimited usage and full API access on Plugsky.
Can I use Plugsky with Grok-compatible code?
Yes. Plugsky provides an OpenAI-compatible API, so any code written for Grok API, OpenAI, or similar providers can be switched to Plugsky by changing the base URL and API key. No code changes needed.
Last updated Jul 2026. Prices and availability verified at time of writing — check provider pages for current rates.
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