AI Model Watch
Deprecations / Migrate

Migrate off Grok 3

Retired

Grok 3 has been retired and shut down on 15 May 2026. xAI's official replacement is Grok 4.3. The cheapest comparable model we track is Grok Build 0.1 (xAI) at $1.25 per 1M tokens blended.

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

StatusRetiredxAI
Shut down15 May 2026plan ahead
Official replacementGrok 4.3$1.56 /M blendedCheapest alternativeGrok Build 0.1$1.25 /M blended
What changes

Grok 3 → Grok 4.3

Moving to Grok 4.3 means a larger context window (131K → 1M).

SpecGrok 3Grok 4.3
StatusRetiredGA
Blended price /1M—$1.56
Input / output /1M—$1.25 / $2.50
Context window131K1M
Max output——
Modalitytext-in, text-outtext-in, image-in, text-out
Knowledge cutoffNov 2024—

API string was grok-3 → switch to grok-4.3. See Grok 4.3's full spec sheet →

Cheapest alternatives

Budget-friendly replacements for Grok 3

Generally-available models that match Grok 3's capabilities (and at least half its 131K context), ranked by blended price. Every number is computed from official catalog prices.

ModelBlended /1MInput / outputContext
Grok Build 0.1
xAI
$1.25$1 / $2256K
Grok 4.20 (0309) Reasoning
xAI
$1.56$1.25 / $2.501M
Grok 4.20 (0309) Non-Reasoning
xAI
$1.56$1.25 / $2.501M
FAQ

Migrating off Grok 3

What replaces Grok 3?

xAI's recommended migration for Grok 3 is Grok 4.3. The cheapest comparable model in our catalog is Grok Build 0.1 (xAI) at $1.25/1M blended.

Is Grok 3 still available?

No — Grok 3 has been retired (shut down 15 May 2026) and is no longer available via xAI's API.

What is the cheapest alternative to Grok 3?

Grok Build 0.1 (xAI) is the cheapest generally-available alternative we track that matches Grok 3's capabilities, at $1 per 1M input and $2 per 1M output tokens ($1.25/1M blended).

Browse the full deprecation watch → or see Grok 3's full spec sheet →