Ministral 3 3B vs o3-mini
Ministral 3 3B vs o3-mini: Ministral 3 3B is cheaper for input-heavy usage ($0.10/M vs $1.10/M input tokens), while o3-mini is better for long-context tasks (500,000 tokens).
Direct answer: choose Ministral 3 3B for lower token spend and choose o3-mini when your workload needs longer context.
Compare input and output token pricing, context windows, and monthly cost estimates on one page so you can pick the cheaper model fast.
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Ministral 3 3B
o3-mini
Cost Differences
o3-mini costs more than Ministral 3 3B
Quick Recommendation
Winner for direct API pricing: Ministral 3 3B. At the default workload, Ministral 3 3B saves about $9.45/month ($114.975/year) versus o3-mini.
Feature Comparison
| Feature | Ministral 3 3B | o3-mini |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Input Price | $0.10/1M tokens | $1.10/1M tokens |
| Output Price | $0.10/1M tokens | $4.40/1M tokens |
| Context Window | 256,000 tokens | 500,000 tokens |
| Max Output | 32,768 tokens | 65,536 tokens |
| Category | efficient | reasoning |
| Capabilities | textvision | textreasoningcode |
| Release Date | 12/2/2025 | 1/31/2025 |
Ministral 3 3B vs o3-mini: Which Should You Choose?
Choosing between Ministral 3 3B and o3-mini depends on your priorities: cost efficiency, context length, or raw capability. Ministral 3 3B is the more affordable option at $0.10/1M input tokens — 91% cheaper than o3-mini. Meanwhile, o3-mini offers a significantly larger context window at 500,000 tokens vs 256,000 for Ministral 3 3B.
These models come from different providers — Mistral AI and OpenAI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with Mistral AI, switching to OpenAIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
These models target different tiers: Ministral 3 3B is a efficient model while o3-mini is reasoning. This means they're optimized for different workloads. o3-mini targets more demanding workloads, while Ministral 3 3B provides a cost-effective option for everyday tasks.
Output costs matter too. Ministral 3 3B charges $0.10/1M output tokens vs $4.40 for o3-mini. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Ministral 3 3B has the edge here at $0.10/1M output tokens.
Multimodal capabilities: Ministral 3 3B supports vision (image inputs) while o3-mini is text-only. If your application needs image understanding, this narrows your choice.
Best Use Cases
Choose Ministral 3 3B when:
- • Budget is a primary concern
- • You're already using Mistral AI's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Choose o3-mini when:
- • You need a larger context window (500,000 tokens)
- • You need more capabilities (reasoning, code)
- • You need longer outputs (up to 65,536 tokens)
- • You're already using OpenAI's API ecosystem
Pros and Caveats at a Glance
Ministral 3 3B
- • Input pricing: $0.10/M tokens
- • Output pricing: $0.10/M tokens
- • Context window: 256,000 tokens
- • Max output: 32,768 tokens
Watch out for
- • Smaller context window than o3-mini
o3-mini
- • Input pricing: $1.10/M tokens
- • Output pricing: $4.40/M tokens
- • Context window: 500,000 tokens
- • Max output: 65,536 tokens
Watch out for
- • Higher input cost than Ministral 3 3B
- • Higher output cost than Ministral 3 3B
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Ministral 3 3B (Mistral AI)
o3-mini (OpenAI)
Start using Ministral 3 3B today
Sign Up for Mistral AI →Start using o3-mini today
Sign Up for OpenAI →Frequently Asked Questions
Which is cheaper, Ministral 3 3B or o3-mini?▼
What is the context window difference between Ministral 3 3B and o3-mini?▼
Which model is better for AI Chatbot?▼
Which model has better overall pricing for heavy usage?▼
Where can I compare Mistral AI and OpenAI API pricing beyond this model matchup?▼
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