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Grok 3 Mini vs Mistral Small 4

Compare xAI and Mistral AI AI models

xAI
Grok 3 Mini
vs
Mistral AI
Mistral Small 4

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

Mistral Small 4

Per Request:$0.000450
Daily:$0.045
Monthly:$1.35
Yearly:$16.425

Cost Differences

$0.000100
Per Request
$0.010000
Daily
$0.30
Monthly
$3.65
Yearly

Mistral Small 4 costs less than Grok 3 Mini

Feature Comparison

FeatureGrok 3 MiniMistral Small 4
ProviderxAIMistral AI
Input Price$0.30/1M tokens$0.15/1M tokens
Output Price$0.50/1M tokens$0.60/1M tokens
Context Window128,000 tokens128,000 tokens
Max Output131,072 tokens16,384 tokens
Categoryefficientefficient
Capabilities
textreasoningcode
textvisioncodereasoning
Release Date2/17/20253/18/2026

Grok 3 Mini vs Mistral Small 4: Which Should You Choose?

Choosing between Grok 3 Mini and Mistral Small 4 depends on your priorities: cost efficiency, context length, or raw capability. Mistral Small 4 is the more affordable option at $0.15/1M input tokens50% cheaper than Grok 3 Mini.

These models come from different providers — xAI and Mistral AI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with xAI, switching to Mistral AIinvolves 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: Mistral Small 4 would save you roughly $30.00/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 $0.60 for Mistral Small 4. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Mistral Small 4 has the edge here at $0.60/1M output tokens.

Multimodal capabilities: Mistral Small 4 supports vision (image inputs) while Grok 3 Mini is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose Grok 3 Mini when:

  • • 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 Mistral Small 4 when:

  • • Budget is a primary concern
  • • You need more capabilities (vision)
  • • You're already using Mistral 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)

Mistral Small 4 (Mistral AI)

Start using Grok 3 Mini today

Sign Up for xAI

Start using Mistral Small 4 today

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Frequently Asked Questions

Which is cheaper, Grok 3 Mini or Mistral Small 4?
Mistral Small 4 is cheaper for input tokens at $0.15 per million tokens vs $0.30 for Grok 3 Mini — that's 50% savings on input costs.
What is the context window difference between Grok 3 Mini and Mistral Small 4?
Grok 3 Mini supports 128,000 tokens while Mistral Small 4 supports 128,000 tokens — a difference of 0 tokens in favor of Grok 3 Mini.
Which model is better for AI Agent / Agentic Workflows?
Both models support text, code, reasoning. For ai agent / agentic workflows, Mistral Small 4 is the lower-cost option, while Grok 3 Mini offers a larger context window (128,000 vs 128,000 tokens). Choose Mistral Small 4 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 Mistral Small 4 costs about $1.35/month. Overall, Mistral Small 4 has lower combined input + output rates ($0.15 in, $0.60 out) vs Grok 3 Mini.

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