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Grok 3 Mini vs o4-mini Deep Research

Compare xAI and OpenAI AI models

xAI
Grok 3 Mini
vs
OpenAI
o4-mini Deep Research

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

o4-mini Deep Research

Per Request:$0.006000
Daily:$0.60
Monthly:$18.00
Yearly:$219.00

Cost Differences

+$0.005450
Per Request
+$0.545
Daily
+$16.35
Monthly
+$198.925
Yearly

o4-mini Deep Research costs more than Grok 3 Mini

Feature Comparison

FeatureGrok 3 Minio4-mini Deep Research
ProviderxAIOpenAI
Input Price$0.30/1M tokens$2.00/1M tokens
Output Price$0.50/1M tokens$8.00/1M tokens
Context Window128,000 tokens200,000 tokens
Max Output131,072 tokens32,768 tokens
Categoryefficientreasoning
Capabilities
textreasoningcode
textreasoningcode
Release Date2/17/20256/26/2025

Grok 3 Mini vs o4-mini Deep Research: Which Should You Choose?

Choosing between Grok 3 Mini and o4-mini Deep Research depends on your priorities: cost efficiency, context length, or raw capability. Grok 3 Mini is the more affordable option at $0.30/1M input tokens85% cheaper than o4-mini Deep Research. Meanwhile, o4-mini Deep Research offers a significantly larger context window at 200,000 tokens vs 128,000 for Grok 3 Mini.

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

These models target different tiers: Grok 3 Mini is a efficient model while o4-mini Deep Research is reasoning. This means they're optimized for different workloads. o4-mini Deep Research targets more demanding workloads, while Grok 3 Mini provides a cost-effective option for everyday tasks.

Output costs matter too. Grok 3 Mini charges $0.50/1M output tokens vs $8.00 for o4-mini Deep Research. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Grok 3 Mini has the edge here at $0.50/1M output tokens.

Best Use Cases

Choose Grok 3 Mini when:

  • • Budget is a primary concern
  • • 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 o4-mini Deep Research when:

  • • You need a larger context window (200,000 tokens)
  • • You're already using OpenAI's API ecosystem

Try Different Scenarios

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

Grok 3 Mini (xAI)

o4-mini Deep Research (OpenAI)

Start using Grok 3 Mini today

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Start using o4-mini Deep Research today

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Frequently Asked Questions

Which is cheaper, Grok 3 Mini or o4-mini Deep Research?
Grok 3 Mini is cheaper for input tokens at $0.30 per million tokens vs $2.00 for o4-mini Deep Research — that's 85% savings on input costs.
What is the context window difference between Grok 3 Mini and o4-mini Deep Research?
Grok 3 Mini supports 128,000 tokens while o4-mini Deep Research supports 200,000 tokens — a difference of 72,000 tokens in favor of o4-mini Deep Research.
Which model is better for AI Agent / Agentic Workflows?
Both models support text, code, reasoning. For ai agent / agentic workflows, Grok 3 Mini is the lower-cost option, while o4-mini Deep Research offers a larger context window (200,000 vs 128,000 tokens). Choose Grok 3 Mini for budget sensitivity or o4-mini Deep Research 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 o4-mini Deep Research costs about $18.00/month. Overall, Grok 3 Mini has lower combined input + output rates ($0.30 in, $0.50 out) vs o4-mini Deep Research.

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