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Grok 3 Mini vs Llama 3.1 8B

Compare xAI and Meta (via Together AI) AI models

xAI
Grok 3 Mini
vs
Meta (via Together AI)
Llama 3.1 8B

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

Grok 3 Mini

Per Request:$0.000550
Daily:$0.055
Monthly:$1.65
Yearly:$20.075

Llama 3.1 8B

Per Request:$0.000270
Daily:$0.027
Monthly:$0.81
Yearly:$9.855

Cost Differences

$0.000280
Per Request
$0.028
Daily
$0.84
Monthly
$10.22
Yearly

Llama 3.1 8B costs less than Grok 3 Mini

Feature Comparison

FeatureGrok 3 MiniLlama 3.1 8B
ProviderxAIMeta (via Together AI)
Input Price$0.30/1M tokens$0.18/1M tokens
Output Price$0.50/1M tokens$0.18/1M tokens
Context Window128,000 tokens128,000 tokens
Max Output131,072 tokens32,768 tokens
Categoryefficientefficient
Capabilities
textreasoningcode
textcode
Release Date2/17/20257/23/2024

Grok 3 Mini vs Llama 3.1 8B: Which Should You Choose?

Choosing between Grok 3 Mini and Llama 3.1 8B depends on your priorities: cost efficiency, context length, or raw capability. Llama 3.1 8B is the more affordable option at $0.18/1M input tokens40% cheaper than Grok 3 Mini.

These models come from different providers — xAI and Meta (via Together AI) — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with xAI, switching to Meta (via Together AI)involves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.

Both models are in the efficient category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: Llama 3.1 8B would save you roughly $84.00/month compared to Grok 3 Mini. For startups and indie developers, that difference can be significant.

Output costs matter too. Grok 3 Mini charges $0.50/1M output tokens vs $0.18 for Llama 3.1 8B. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Llama 3.1 8B has the edge here at $0.18/1M output tokens.

Best Use Cases

Choose Grok 3 Mini when:

  • • You need more capabilities (reasoning)
  • • You need longer outputs (up to 131,072 tokens)
  • • You're already using xAI's API ecosystem
  • • You're running high-volume, latency-sensitive workloads

Choose Llama 3.1 8B when:

  • • Budget is a primary concern
  • • You're already using Meta (via Together AI)'s API ecosystem
  • • You're running high-volume, latency-sensitive workloads

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

Grok 3 Mini (xAI)

Llama 3.1 8B (Meta (via Together AI))

Start using Grok 3 Mini today

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Start using Llama 3.1 8B today

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Frequently Asked Questions

Which is cheaper, Grok 3 Mini or Llama 3.1 8B?
Llama 3.1 8B is cheaper for input tokens at $0.18 per million tokens vs $0.30 for Grok 3 Mini — that's 40% savings on input costs.
What is the context window difference between Grok 3 Mini and Llama 3.1 8B?
Grok 3 Mini supports 128,000 tokens while Llama 3.1 8B supports 128,000 tokens — a difference of 0 tokens in favor of Grok 3 Mini.
Which model is better for AI Chatbot?
Both models support text. For ai chatbot, Llama 3.1 8B is the lower-cost option, while Grok 3 Mini offers a larger context window (128,000 vs 128,000 tokens). Choose Llama 3.1 8B for budget sensitivity or Grok 3 Mini for longer context tasks.
Which model has better overall pricing for heavy usage?
At 100 requests/day with 1,000 input and 500 output tokens each, Grok 3 Mini costs about $1.65/month and Llama 3.1 8B costs about $0.81/month. Overall, Llama 3.1 8B has lower combined input + output rates ($0.18 in, $0.18 out) vs Grok 3 Mini.

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