Voice & audio
Grok: pricing, free plan, and how to use it
Grok is SpaceXSI’s AI assistant for chat, voice agents, images, and coding, with a free plan of limited chat and agent requests. The X Subscription lists Plus at $8 a month, Premium at $30, Super at $100, and Ultra at $200. Grok Voice 3.0 speech-to-speech in the API is $0.08 a minute.
Last checked:
Mishal Brands Score
Fact-based, not hands-on testing. How the score works
Quick answer
Yes, Grok has a free plan with limited chat and agent requests. Paid X Subscription plans on x.ai/pricing are Plus $8, Premium $30, Super $100, and Ultra $200 a month (or $80, $300, $1,000, and $2,000 a year). Grok Voice 3.0 speech-to-speech is $0.08 per minute in the Voice Agent API, the same price as Voice 2.0. Checked October 15, 2026.
No affiliate links. Links to Grok on this page are plain links to the official site. Mishal Brands has not tested Grok hands-on; this page reports what SpaceXSI publishes.
What is Grok?
Grok is SpaceXSI’s conversational AI, available on grok.com, mobile apps, and through The X Subscription, which also covers Cursor and X Premium benefits when you connect an X account. On October 14, 2026, SpaceXSI released Grok Voice 3.0, a speech-to-speech model for voice agents. The announcement says it is available in the Voice Agent API at $0.08 per minute, and that agents on grok-voice-latest were switched automatically. The Voice API also lists text-to-speech at $15 per 1M characters and speech-to-text from $0.10 per hour (REST). Text API model prices are published separately on docs.x.ai.
Official site: grok.com. Category in the AI Library: Voice & audio.
How much does Grok cost?
Prices from SpaceXSI’s official pricing page, checked Oct 15, 2026, in US dollars before tax. If the official page shows something different, the official page is right.
Plans with no monthly price on the official page are not shown. Prices are the first monthly price in each table row below.
| Plan | Price | What the official page says |
|---|---|---|
| Free | $0/month | Limited chat and agent requests |
| Plus | $8/month ($80/year) | Shared AI usage pool; Grok Chat, Voice, Imagine, and Build; Grok API access; Cursor |
| Premium | $30/month ($300/year) | 4x Plus usage; Grok Bot; latest models; cloud agents |
| Super | $100/month ($1,000/year) | 15x Plus usage; priority model access at peak times |
| Ultra | $200/month ($2,000/year) | 50x Plus usage |
| Voice Agent API: Speech to Speech (Grok Voice 3.0) | $0.08/min ($4.80/hr) + $0.004/text input | Realtime voice agents; grok-voice-2.0 deprecated |
| Voice API: Text to Speech | $15.00 / 1M characters | Multiple voices and audio formats |
| Voice API: Speech to Text | $0.10/hr REST, $0.20/hr streaming | Transcription for calls, meetings, and media |
How do you try Grok Voice for a customer-support voice agent?
Here is a practical setup in 5 steps. It follows the features SpaceXSI lists; it is not a hands-on test.
- Open x.ai/api/voice or the SpaceXSI console and create an API key for the Voice Agent API.
- Point your agent at model grok-voice-3.0 or grok-voice-latest (the alias already points to 3.0).
- Add the tools your support flow needs, such as order lookup or refund status, and write clear system instructions.
- Run a test call covering a common ticket: interruption, a noisy line, and a refund request.
- Check latency and resolution yourself, then compare the $0.08 per minute rate to your current support cost before a wider rollout.
What is Grok’s Mishal Brands Score?
Grok scores 10 out of 10 on the Mishal Brands Score (fact-based, not hands-on testing). Each point comes from a public fact on an official page, not from testing the tool. How the score works.
| Criterion | Points | Public fact |
|---|---|---|
| Pricing transparency | 2 / 2 | Consumer X Subscription prices and Voice/text API prices are published on official pages. |
| Free plan or trial | 2 / 2 | Free plan with limited chat and agent requests that renew with the plan. |
| Business features | 2 / 2 | Team plans on Premium/Super/Ultra seats; SAML/OIDC SSO named on the pricing page. |
| Integrations and API | 2 / 2 | Public API and developer docs at docs.x.ai; Voice Agent API with tool calling. |
| Documentation and support | 1 / 1 | Public docs.x.ai developer documentation and Consumer FAQs. |
| Privacy and data terms | 1 / 1 | Published privacy policy, plus an official statement that SpaceXSI does not train on API inputs/outputs without permission. |
| Total | 10 / 10 | Mishal Brands Score (fact-based, not hands-on testing) |
FAQ
Is Grok free?
Yes. The X Subscription Free plan on x.ai/pricing includes limited chat and agent requests.
How much is Grok Premium?
$30 a month, or $300 a year ($25 a month), on SpaceXSI’s pricing page, checked October 15, 2026.
What is Grok Voice 3.0?
SpaceXSI’s speech-to-speech model announced October 14, 2026. It is in the Voice Agent API at $0.08 per minute, the same price as Grok Voice 2.0. Agents using grok-voice-latest were switched automatically.
Does SpaceXSI train on API data?
SpaceXSI’s developer security FAQ says it never trains on API inputs or outputs without explicit permission. By default, API requests are stored encrypted for 30 days for auditing, then deleted.
Is there a Grok team plan?
Yes. Docs say Team plans are available on Premium, Super, and Ultra seats, with centralized billing and the option to mix seat tiers. SSO is listed under team management on the pricing page.
Does Grok have public API docs?
Yes. SpaceXSI publishes developer docs at docs.x.ai, including Voice, text API pricing, and security FAQs.
Sources, all official SpaceXSI pages, checked Oct 15, 2026: The X Subscription pricing; X Subscription pricing docs; Introducing Grok Voice 3.0; Grok Voice API; API pricing; API security FAQ (training); Consumer FAQs; Privacy policy.
Mishal Brands is not affiliated with SpaceXSI. Product names belong to their owners. How we review.