GPT-5.1 vs Ministral 3 8B
GPT-5.1 vs Ministral 3 8B: Ministral 3 8B is cheaper for input-heavy usage ($0.15/M vs $1.25/M input tokens), while GPT-5.1 is better for long-context tasks (1,000,000 tokens).
Direct answer: choose Ministral 3 8B for lower token spend and choose GPT-5.1 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)
GPT-5.1
Ministral 3 8B
Cost Differences
Ministral 3 8B costs less than GPT-5.1
Quick Recommendation
Winner for direct API pricing: Ministral 3 8B. At the default workload, Ministral 3 8B saves about $18.075/month ($219.9125/year) versus GPT-5.1.
Feature Comparison
| Feature | GPT-5.1 | Ministral 3 8B |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Input Price | $1.25/1M tokens | $0.15/1M tokens |
| Output Price | $10.00/1M tokens | $0.15/1M tokens |
| Context Window | 1,000,000 tokens | 256,000 tokens |
| Max Output | 131,072 tokens | 32,768 tokens |
| Category | flagship | efficient |
| Capabilities | textvisionaudiocodereasoning | textvision |
| Release Date | 11/12/2025 | 12/2/2025 |
GPT-5.1 vs Ministral 3 8B: Which Should You Choose?
Choosing between GPT-5.1 and Ministral 3 8B depends on your priorities: cost efficiency, context length, or raw capability. Ministral 3 8B is the more affordable option at $0.15/1M input tokens — 88% cheaper than GPT-5.1. Meanwhile, GPT-5.1 offers a significantly larger context window at 1,000,000 tokens vs 256,000 for Ministral 3 8B.
These models come from different providers — OpenAI and Mistral AI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with OpenAI, switching to Mistral AIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
These models target different tiers: GPT-5.1 is a flagship model while Ministral 3 8B is efficient. This means they're optimized for different workloads. GPT-5.1 is built for complex tasks that require deeper reasoning, while Ministral 3 8B offers better value for routine operations.
Output costs matter too. GPT-5.1 charges $10.00/1M output tokens vs $0.15 for Ministral 3 8B. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Ministral 3 8B has the edge here at $0.15/1M output tokens.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose GPT-5.1 when:
- • You need a larger context window (1,000,000 tokens)
- • You need more capabilities (audio, code, reasoning)
- • You need longer outputs (up to 131,072 tokens)
- • You're already using OpenAI's API ecosystem
Choose Ministral 3 8B when:
- • Budget is a primary concern
- • You're already using Mistral AI's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Pros and Caveats at a Glance
GPT-5.1
- • Input pricing: $1.25/M tokens
- • Output pricing: $10.00/M tokens
- • Context window: 1,000,000 tokens
- • Max output: 131,072 tokens
Watch out for
- • Higher input cost than Ministral 3 8B
- • Higher output cost than Ministral 3 8B
Ministral 3 8B
- • Input pricing: $0.15/M tokens
- • Output pricing: $0.15/M tokens
- • Context window: 256,000 tokens
- • Max output: 32,768 tokens
Watch out for
- • Smaller context window than GPT-5.1
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
GPT-5.1 (OpenAI)
Ministral 3 8B (Mistral AI)
Start using GPT-5.1 today
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Sign Up for Mistral AI →Frequently Asked Questions
Which is cheaper, GPT-5.1 or Ministral 3 8B?▼
What is the context window difference between GPT-5.1 and Ministral 3 8B?▼
Which model is better for AI Chatbot?▼
Which model has better overall pricing for heavy usage?▼
Where can I compare OpenAI and Mistral AI API pricing beyond this model matchup?▼
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