Mistral Medium 3.5 vs GPT-5.4
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
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Mistral Medium 3.5 is 94.4% cheaper on blended cost ($4.50 vs $8.75/Mtok)
|
by Mistral
|
by OpenAI
|
|
|---|---|---|
| Overview | ||
| Status | Current mid tier | Current flagship |
| Released | Sep 1, 2025 | Aug 15, 2025 |
| Pricing per million tokens | ||
| Input | $1.50/Mtok | $2.50/Mtok |
| Output | $7.50/Mtok | $15.00/Mtok |
| Blended avg | $4.50/Mtok | $8.75/Mtok |
| Cached input | — | $0.250/Mtok |
| Specifications | ||
| Context window | 128K tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
text
|
textimage
|
| Providers | ||
| Available from |
Mistral — $1.50/$7.50/Mtok
|
OpenAI — $2.50/$15.00/Mtok
|
Cost at scale — 1M tokens (50/50 input/output)
| Volume | Mistral Medium 3.5 | GPT-5.4 | Savings |
|---|---|---|---|
| 1M tokens | $4.5 | $8.75 | $4.25 (48.6%) |
| 10M tokens | $45 | $87.5 | $42.5 (48.6%) |
| 100M tokens | $450 | $875 | $425 (48.6%) |
| 1000M tokens | $4500 | $8750 | $4250 (48.6%) |
Try Mistral Medium 3.5 on Mistral
The cheaper option here — Mistral Medium 3.5 costs $4.50/Mtok blended on Mistral.
Summary
Mistral Medium 3.5 by Mistral costs $1.50/Mtok input and $7.50/Mtok output, with a 128K-token context window. It supports text input.
GPT-5.4 by OpenAI costs $2.50/Mtok input and $15.00/Mtok output, with a 1M-token context window. It supports text, image input.
On a blended cost basis, Mistral Medium 3.5 is 94.4% cheaper than GPT-5.4.
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.