GPT-5.4 vs Mistral Medium 3
Compare OpenAI and Mistral AI AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
GPT-5.4
Mistral Medium 3
Cost Differences
Mistral Medium 3 costs less than GPT-5.4
Feature Comparison
| Feature | GPT-5.4 | Mistral Medium 3 |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Input Price | $2.50/1M tokens | $0.40/1M tokens |
| Output Price | $15.00/1M tokens | $2.00/1M tokens |
| Context Window | 1,050,000 tokens | 128,000 tokens |
| Max Output | 131,072 tokens | 16,384 tokens |
| Category | flagship | balanced |
| Capabilities | textvisioncodereasoning | textcode |
| Release Date | 3/6/2026 | 5/7/2025 |
GPT-5.4 vs Mistral Medium 3: Which Should You Choose?
Choosing between GPT-5.4 and Mistral Medium 3 depends on your priorities: cost efficiency, context length, or raw capability. Mistral Medium 3 is the more affordable option at $0.40/1M input tokens — 84% cheaper than GPT-5.4. Meanwhile, GPT-5.4 offers a significantly larger context window at 1,050,000 tokens vs 128,000 for Mistral Medium 3.
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-5.4 is a flagship model while Mistral Medium 3 is balanced. This means they're optimized for different workloads. GPT-5.4 is built for complex tasks that require deeper reasoning, while Mistral Medium 3 offers better value for routine operations.
Output costs matter too. GPT-5.4 charges $15.00/1M output tokens vs $2.00 for Mistral Medium 3. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Mistral Medium 3 has the edge here at $2.00/1M output tokens.
Multimodal capabilities: GPT-5.4 supports vision (image inputs) while Mistral Medium 3 is text-only. If your application needs image understanding, this narrows your choice.
Best Use Cases
Choose GPT-5.4 when:
- • You need a larger context window (1,050,000 tokens)
- • You need more capabilities (vision, reasoning)
- • You need longer outputs (up to 131,072 tokens)
- • You're already using OpenAI's API ecosystem
Choose Mistral Medium 3 when:
- • Budget is a primary concern
- • You're already using Mistral AI's API ecosystem
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
GPT-5.4 (OpenAI)
Mistral Medium 3 (Mistral AI)
Start using GPT-5.4 today
Sign Up for OpenAI →Start using Mistral Medium 3 today
Sign Up for Mistral AI →