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Model families
Grok.
A closed line, by API.
Grok is built by SpaceXAI, the company formerly called xAI and now part of SpaceX. Its current models are available by API only, so the evaluation is about quality, price and the provider's terms rather than hosting.
All Model Families →
Current release
Grok today.
SpaceXAI ships these models as a range rather than one lead model, so this page is about the family: what it is good at, where it runs and how we evaluate it.
Last reviewed on 30 October 2026. We check the public model catalogues every week; when a new release appears, we review it against the provider's announcement and update this page.
LATEST MODELS
The newest Grok models.
What SpaceXAI has shipped most recently. Each has its own page with specifications, independent ratings at every reasoning setting and listed prices.
21 Sep 2026
Grok 4.7
- Intelligence
- 34.3
- Context
- 500k
- In / out per M
- $2.00 / $6.00
12 Aug 2026
Grok 4.6
- Intelligence
- —
- Context
- 500k
- In / out per M
- $2.00 / $6.00
8 Jul 2026
Grok 4.5
- Intelligence
- —
- Context
- 500k
- In / out per M
- $2.00 / $6.00
20 May 2026
Grok Build 0.1
- Intelligence
- —
- Context
- 256k
- In / out per M
- $1.00 / $2.00
EVERY MODEL
All 7 Grok models, compared.
Sort by any column. Select a model for its full page.
| Grok 4.7 | 21 Sep 2026 | 34.3 | 82 | 500k | $2.00 | $6.00 |
|---|---|---|---|---|---|---|
| Grok 4.6 | 12 Aug 2026 | — | — | 500k | $2.00 | $6.00 |
| Grok 4.5 | 8 Jul 2026 | — | — | 500k | $2.00 | $6.00 |
| Grok Build 0.1 | 20 May 2026 | — | — | 256k | $1.00 | $2.00 |
| Grok 4.3 | 30 Apr 2026 | — | — | 1M | $1.25 | $2.50 |
| Grok 4.20 | 7 Apr 2026 | — | — | 2M | $1.25 | $2.50 |
| Grok 4.20 Multi-Agent | 31 Mar 2026 | — | — | 2M | $1.25 | $2.50 |
Intelligence and coding: Artificial Analysis indices at the model's best reasoning setting, and its measured output speed. Context and prices: the OpenRouter catalogue list price in USD per million tokens. Released: the provider's date where Artificial Analysis records one, otherwise the date the catalogue first listed it. Refreshed weekly; not measured by QQuantum.ai. Select a heading to sort.
Specification
- Provider
- SpaceXAI (formerly xAI; acquired by SpaceX in 2026), United States
- Weights
- Closed for current models. Weights were published for some much older releases, such as Grok-1
- Access paths
- The provider's API and third-party model catalogues
- Where we would test it
- As one candidate in a hosted model pool, measured against your current frontier model on your own tasks
Provider-published specifications as of 30 October 2026, not figures we measured. Model families move quickly — check the provider's own documentation before committing to a number.
INDEPENDENT RATINGS
How Grok compares.
Third-party scores and listed prices, refreshed every week. Useful for building a shortlist; your own evaluation decides.
Composite index across their reasoning, knowledge, maths and coding evaluations · Higher is better · Linear scale from 0 to 66.0
- Gemini 4 Carbon
- 59.4
- Claude Opus 5.5
- 58.4
- GPT-6 Astra
- 56.9
- Muse Wonder Full
- 49.7
- Grok 4.7
- 35.0
This family's highest-rated models, highlighted, against the best-rated model of each other family we cover. One composite score cannot show cost, latency, data residency or how a model handles your task.
Source: Artificial Analysis. Checked 30 October 2026. Measured independently by Artificial Analysis, not by QQuantum.ai or the providers.
USD per million output tokens · The newest releases in the family · Linear scale from 0 to $7.00
- Grok 4.7
- $6.00
- Grok 4.6
- $6.00
- Grok 4.5
- $6.00
- Grok Build 0.1
- $2.00
- Grok 4.3
- $2.50
Input is priced separately: Grok 4.7 $2.00, Grok 4.6 $2.00, Grok 4.5 $2.00, Grok Build 0.1 $1.00, Grok 4.3 $1.25 per million tokens. Catalogue list prices; the provider's own rates, caching and batch discounts can differ.
Source: OpenRouter model catalogue. Checked 30 October 2026. Listed by OpenRouter, not measured by QQuantum.ai.
What to check first
The company has changed name and ownership within a year, so confirm which entity your contract, data-processing terms and support arrangements are with before production use. For European work, check where requests are processed and how long they are retained.
Where data may not leave your infrastructure, a closed API is out and the decision moves to open-weight models. Where it may, keep Grok behind the same model interface as your other providers, so switching is an evaluation run rather than a rewrite.
Questions
Questions about Grok.
Is xAI the same company as SpaceXAI?
Yes. SpaceX acquired xAI in early 2026 and the company now operates as SpaceXAI. The Grok model name did not change; the public model catalogues list it under SpaceXAI.
Can we self-host Grok?
Not the current models: they are offered by API only. Older releases with published weights are far behind today's frontier and are rarely a sensible production choice.
Grok or another frontier model?
Run the same representative tasks on each candidate and compare accepted results, latency and total cost. The ratings above help build the shortlist; your own evaluation decides.
