o4-mini vs Grok 3 Mini
Compare pricing, context windows, and strengths for o4-mini by OpenAI and Grok 3 Mini by xAI - and see how to put either to work in Appaca.
o4-mini
A fast, cost-efficient small reasoning model optimized for coding and visual tasks; succeeded by GPT-5 mini.
View o4-miniGrok 3 Mini
A lightweight reasoning model that is fast, efficient, and ideal for logic-heavy tasks without deep domain requirements.
View Grok 3 Minio4-mini vs Grok 3 Mini at a glance
Specs and pricing side by side, from the Appaca AI models directory.
| Spec | o4-mini | Grok 3 Mini |
|---|---|---|
| Provider | OpenAI | xAI |
| Model type | Text | Text |
| Context window | 200K tokens | 131.1K tokens |
| Input price | $1.1 / 1M tokens | $0.3 / 1M tokens |
| Output price | $4.4 / 1M tokens | $0.5 / 1M tokens |
| Status | Current | Current |
How o4-mini and Grok 3 Mini differ
What the numbers mean in practice when choosing between o4-mini and Grok 3 Mini.
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Grok 3 Mini is 73% cheaper on input tokens ($0.3 vs $1.1 per million), which adds up quickly in document-heavy workloads.
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Grok 3 Mini is 89% cheaper on output tokens ($0.5 vs $4.4 per million) - the bigger factor for tools that generate long documents.
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o4-mini's 200K tokens context window is roughly 1.5x larger than Grok 3 Mini's 131.1K tokens, so it can work across bigger codebases, contracts, or archives in one pass.
Strengths side by side
Where each model shines, according to benchmarks and provider positioning.
o4-mini
1. Fast and efficient reasoning
- Provides strong reasoning capabilities with significantly lower latency and cost compared to larger o-series models.
- Ideal for lightweight reasoning tasks, logic steps, and quick multi-step thinking.
2. Optimized for coding tasks
- Performs exceptionally well in code generation, debugging, and explanation.
- Useful for IDE integrations, coding assistants, and developer tools with tight latency budgets.
3. Strong visual reasoning
- Accepts image inputs for tasks such as diagram interpretation, charts, UI analysis, and visual logic.
- Great for hybrid text-image reasoning flows.
4. Large 200K-token context window
- Capable of processing long documents, multi-file codebases, or extended analysis.
- Reduces need for chunking or external retrieval pipelines.
5. High 100K-token output limit
- Supports lengthy reasoning sequences, full codebase explanations, or multi-section documents.
6. Broad API compatibility
- Available in Chat Completions, Responses, Realtime, Assistants, Batch, Embeddings, and Image workflows.
- Supports streaming, function calling, structured outputs, and fine-tuning.
7. Cost-efficient for production
- Lower input/output pricing makes it suitable for large-scale deployments, SaaS products, and recurring tasks.
8. Succeeded by GPT-5 mini
- GPT-5 mini offers improved speed, reasoning power, and pricing, but o4-mini remains a strong option for cost-sensitive workloads.
Grok 3 Mini
1. Lightweight but thoughtful reasoning
- Designed to 'think before responding' with accessible raw thought traces.
- Excellent for logic puzzles, lightweight reasoning, and systematic tasks.
2. Extremely cost-efficient
- Only $0.30 per 1M input tokens and $0.50 per 1M output tokens.
- Cached token support lowers cost to $0.075 per 1M tokens.
3. Fast and responsive
- Optimized for low-latency applications and high-throughput use cases.
- Suitable for chatbots, assistants, and automation flows.
4. Supports modern developer features
- Function calling for tool-augmented workflows.
- Structured outputs for schema-controlled responses.
- Integrates cleanly with agents and pipelines.
5. Large 131K context window
- Can understand and work with long documents, transcripts, or multi-turn sessions.
6. Great for non-domain-heavy tasks
- Useful for summarization, rewriting, extraction, everyday reasoning, and app logic.
- Does not require domain expertise to operate effectively.
7. Compatible with enterprise infrastructure
- Stable rate limits: 480 requests per minute.
- Same API structure as all Grok 3 models.
8. Optional Live Search support
- $25 per 1K sources for real-time search augmentation.
Use o4-mini or Grok 3 Mini - or both
Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by o4-mini or Grok 3 Mini - connected to your real data and ready for your whole team. No code, no deployment.
Describe it, and it's built
Tell the Appaca agent the internal tool you need and it builds a working app powered by o4-mini or Grok 3 Mini. No code, no API keys, no deployment.
Switch models without rebuilding
Start on o4-mini, test the same tool on Grok 3 Mini, and keep whichever performs better - the rest of your app stays exactly as it is.
Automated for the whole team
Schedule tools to run on autopilot - daily digests, weekly reports, real-time triggers - and share them with your whole team from one workspace.
Describe it, and it's built
Tell the Appaca agent what your team needs and it builds a working app powered by o4-mini or Grok 3 Mini - connected to the tools you already use.
Related comparisons
See how o4-mini and Grok 3 Mini stack up against other models in the directory.
FAQs
Grok 3 Mini is generally cheaper: $0.3 input / $0.5 output per million tokens, versus $1.1 / $4.4 for o4-mini. Actual cost depends on how many tokens your workload reads and writes.
o4-mini has the larger context window at 200K tokens, compared to 131.1K tokens for Grok 3 Mini. A larger window means the model can consider more text at once - useful for long contracts, codebases, or months of records.
It depends on the job. Compare the pricing, context window, and strengths above against your workload - and remember the choice isn't permanent. In Appaca you can build a tool on o4-mini, test the same tool on Grok 3 Mini, and switch at any time without rebuilding anything.
Yes. Appaca is a no-code AI workspace: describe the internal tool your team needs and the Appaca agent builds it as a working app powered by o4-mini, Grok 3 Mini, or any other model in the directory - with a built-in database, team access, and integrations. No API keys to wire up and nothing to deploy.
Build AI tools with o4-mini or Grok 3 Mini
Describe the tool your team needs and get a working app powered by the model you choose - with a built-in database, team access, and integrations. No code, no deployment.