Grok 4 vs LLaMA 3.1 405B — Which Is Better in 2026?
Grok 4 vs LLaMA 3.1 405B: independent head-to-head scored on Performance, Value, Reliability, and Ease of Use. See scores, pros, cons, and our verdict.
xAI
Grok 4
xAI's most powerful model
Meta
LLaMA 3.1 405B
Best open-source LLM — free to run
8.3
Overall Score
WINNER7.8
Overall Score
Our Verdict
Grok 4 scores higher overall (8.3/10 vs 7.8/10), winning on Performance and Reliability. xAI's most powerful model. 1M token context, real-time X/web data, and strong reasoning.
Pricing — Grok 4
See website for current pricing
Pricing — LLaMA 3.1 405B
Free (self-hosted) · Cloud inference from $0.003/1K tokens
Grok 4
Pros
- ✓Strong performance on key benchmarks
- ✓Active development and regular updates
- ✓Growing ecosystem and community
Cons
- ✗May have less documentation than larger platforms
- ✗Ecosystem still growing
- ✗Evaluate for your specific use case
Best For
xAI ecosystem users and teams looking for Grok 4 capabilities
LLaMA 3.1 405B
Pros
- ✓Fully open-source weights — self-host for free
- ✓No data sent to third parties
- ✓Competitive with GPT-4 class models
Cons
- ✗Requires GPU infrastructure to run
- ✗No official support or SLA
- ✗Harder to set up than hosted solutions
Best For
Privacy-first deployments, open-source enthusiasts, budget-conscious teams with infrastructure
Choose Grok 4 if…
- →Performance is your top priority — Grok 4 leads by 0.7 points
- →xAI ecosystem users and teams looking for Grok 4 capabilities
- →You also value Reliability — Grok 4 wins that dimension too
Choose LLaMA 3.1 405B if…
- →Value is your top priority — LLaMA 3.1 405B leads by 2.0 points
- →Privacy-first deployments
- →Meta support, documentation, and community suit your team
Frequently Asked Questions
Is Grok 4 better than LLaMA 3.1 405B?
Grok 4 scores 8.3/10 overall vs 7.8/10 for LLaMA 3.1 405B, with an edge on Performance and Reliability and Ease of Use. That said, "LLaMA 3.1 405B" may be the better pick if value is your priority. The right choice depends on your use case.
What is the pricing difference between Grok 4 and LLaMA 3.1 405B?
Grok 4: See website for current pricing. LLaMA 3.1 405B: Free (self-hosted) · Cloud inference from $0.003/1K tokens. Compare usage volumes and features needed to determine total cost of ownership for your team.
Which is better for xai ecosystem users and teams looking for grok 4 capabilities?
Grok 4 is generally stronger here, scoring 8.3/10 overall. xAI's most powerful model. 1M token context, real-time X/web data, and strong reasoning. For more niche requirements like value, LLaMA 3.1 405B may be worth evaluating.
See all VS comparisons
28 head-to-head comparisons across AI models, coding tools, image generators & more.
Browse all comparisons →