GPT-5 nano vs Mistral Small 4
Compare OpenAI and Mistral AI AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
GPT-5 nano
Mistral Small 4
Cost Differences
Mistral Small 4 costs more than GPT-5 nano
Feature Comparison
| Feature | GPT-5 nano | Mistral Small 4 |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Input Price | $0.05/1M tokens | $0.15/1M tokens |
| Output Price | $0.40/1M tokens | $0.60/1M tokens |
| Context Window | 128,000 tokens | 128,000 tokens |
| Max Output | 8,192 tokens | 16,384 tokens |
| Category | efficient | efficient |
| Capabilities | text | textvisioncodereasoning |
| Release Date | 8/7/2025 | 3/18/2026 |
GPT-5 nano vs Mistral Small 4: Which Should You Choose?
Choosing between GPT-5 nano and Mistral Small 4 depends on your priorities: cost efficiency, context length, or raw capability. GPT-5 nano is the more affordable option at $0.05/1M input tokens — 67% cheaper than Mistral Small 4.
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.
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: GPT-5 nano would save you roughly $60.00/month compared to Mistral Small 4. For startups and indie developers, that difference can be significant.
Output costs matter too. GPT-5 nano charges $0.40/1M output tokens vs $0.60 for Mistral Small 4. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-5 nano has the edge here at $0.40/1M output tokens.
Multimodal capabilities: Mistral Small 4 supports vision (image inputs) while GPT-5 nano is text-only. If your application needs image understanding, this narrows your choice.
Best Use Cases
Choose GPT-5 nano when:
- • Budget is a primary concern
- • You're already using OpenAI's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Choose Mistral Small 4 when:
- • You need more capabilities (vision, code, reasoning)
- • You need longer outputs (up to 16,384 tokens)
- • 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
GPT-5 nano (OpenAI)
Mistral Small 4 (Mistral AI)
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