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Models / xAI

Grok 3

Retired

Retired from the xAI API on 2026-05-15 12:00 PM PT per official migration page; redirects to grok-4.3 with 'none' reasoning effort, slug still resolves. ~131K context window per third-party sources (not re-confirmed on current docs). Knowledge cutoff Nov 2024 per docs. Per-token pricing no longer published on docs; left null.

Grok 3 by xAI is tracked live in our LLM catalog, with a 131K (131.072-token) context window. It has been retired (shut down 15 May 2026); the recommended migration is Grok 4.3.

Last verified: 13 Aug 2026 · sourced from official provider documentation

Lifecycle warning

This model has been retired. Scheduled shutdown: 15 May 2026. Recommended migration: Grok 4.3.

Read the Grok 3 migration guide → replacement & cheapest alternatives

Provider
xAI
Status
Retired
Input price
—
Output price
—
Cached input
—
Blended price
—
Context window
131.072 tokens (131K)
Max output
—
Modality
text-in, text-out
Open weights
No — API only
Knowledge cutoff
2024-11
Released
—
API string
grok-3

Source: xAI official documentation ↗

See also

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FAQ

Grok 3 — questions & answers

What is the context window of Grok 3?

Grok 3 has a 131.072-token context window (131K).

Is Grok 3 still available?

Grok 3 has been retired and is no longer available. Its scheduled shutdown date is 15 May 2026. The recommended migration is Grok 4.3.

Does Grok 3 support image or vision input?

Our catalog lists Grok 3's modalities as text-in, text-out; image/vision input is not among them.

Can I self-host Grok 3?

No — Grok 3 is proprietary. Its weights are not publicly released, so it is available only through xAI's API (or hosted partners), not for self-hosting.

What is the API model string for Grok 3?

The API model identifier for Grok 3 is "grok-3" when calling xAI's API.

What is Grok 3's knowledge cutoff?

Grok 3's training knowledge cutoff is Nov 2024.