Mistral Medium 3.5 vs GPT-4o

Side-by-side API pricing comparison: which model gives you more for less?

Last verified Jun 2026 · Prices per 1M tokens

Cheaper Input
Mistral Medium 3.5
$1.5 vs $2.5
Cheaper Output
Mistral Medium 3.5
$7.5 vs $10
Max Savings
40%
by switching to Mistral Medium 3.5
Save up to 40%
Switch from GPT-4o to Mistral Medium 3.5 · $1.5 input / $7.5 output per 1M tokens

Quick Comparison

FeatureMistral Medium 3.5GPT-4o
Provider Mistral OpenAI
Tier Mid Mid
Input Price $1.5 $2.5
Output Price $7.5 $10
Context Window 128K 128K
Verified Jun 2026 May 2026

When to Use Each

💰 Cost-Sensitive Workloads

High-volume APIs, batch processing, and startups watching runway.

→ Use Mistral Medium 3.5 — 40% cheaper input, 25% cheaper output

🧠 Complex Reasoning

Tasks requiring advanced reasoning, code generation, or nuanced analysis.

→ Either model works — compare quality on your specific tasks

⚡ High-Throughput APIs

Real-time chatbots, streaming responses, and latency-sensitive apps.

→ Mistral Medium 3.5 for cost at scale, GPT-4o if quality matters more

🔬 Prototyping & Testing

Development, experimentation, and non-critical workloads.

→ Use Mistral Medium 3.5 — same context (128K), much cheaper

Track price changes for both models

APIpulse Pro monitors 49 models across 10 providers. Get alerts when Mistral Medium 3.5 or GPT-4o prices change.

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Frequently Asked Questions

Is Mistral Medium 3.5 cheaper than GPT-4o?

Yes. Mistral Medium 3.5 costs $1.5 input / $7.5 output per 1M tokens, while GPT-4o costs $2.5 input / $10 output. That's 40% cheaper on input and 25% cheaper on output.

How much can I save switching to Mistral Medium 3.5?

For a typical workload (1M input + 500K output tokens/month), Mistral Medium 3.5 costs $5.25/month vs $7.50/month for GPT-4o. That's a savings of $2.25/month (40%).

Which should I choose: Mistral Medium 3.5 or GPT-4o?

Choose Mistral Medium 3.5 for cost efficiency. Choose GPT-4o for OpenAI ecosystem benefits. Both have 128K context windows.