Grok 4.3 vs Meta Llama 3.1 405B Instruct
Grok 4.3 is not currently in the Allocate serving catalog, so this page lists no prices for it: every price on this site comes from the live catalog.
LabxAIMeta
AccessNot served on AllocateOpen weights
Context windown/a4K tokens
List price, inputNot served$3.5 / M tokens
List price, outputNot served$3.5 / M tokens
Cached inputn/an/a
LicenseProprietary APILlama community
Fine-tunableNoYes
Specifications and provider list prices from the Allocate catalog, checked 2026-07-08. Billed price is list plus the 7% transaction fee.
Choose Grok 4.3 for
- Freshness-sensitive answers
- Fast reasoning turns
- Research assistants
Choose Meta Llama 3.1 405B Instruct for
- Open weights you can fine-tune and own
Common questions
Which has the bigger context window?
Meta Llama 3.1 405B Instruct: 4,096 tokens (4K) against an unlisted window for Grok 4.3.
Can I fine-tune Grok 4.3 or Meta Llama 3.1 405B Instruct?
Meta Llama 3.1 405B Instruct publishes open weights (Llama community) and can be fine-tuned on your own data. Grok 4.3 is a closed model served over API; its weights are not available.
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