How much can I save switching from GPT-oss 120B to Mistral Small 4?

You can save 33% on input and 50% on output tokens by switching. For a typical workload of 1M input + 500K output tokens per month, Mistral Small 4 costs $0.25 vs $0.45 — saving $0.20/month.

Which model should I use: GPT-oss 120B or Mistral Small 4?

Choose Mistral Small 4 for cost efficiency — it's 33% cheaper on input. Choose GPT-oss 120B if you need OpenAI ecosystem integration. Both have 128K context windows.

GPT-oss 120B vs Mistral Small 4

Q: Is Mistral Small 4 cheaper than GPT-oss 120B?

Yes, Mistral Small 4 costs $0.1/$0.3 per 1M tokens while GPT-oss 120B costs $0.15/$0.6. That's 33% cheaper on input and 50% cheaper on output.

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

Last verified May 2026 · Prices per 1M tokens

Quick Comparison

Feature	GPT-oss 120B	Mistral Small 4
Provider	OpenAI	Mistral
Tier	Budget	Budget
Input Price	$0.15	$0.1
Output Price	$0.6	$0.3
Context Window	128K	128K
Verified	May 2026	Jun 2026

When to Use Each

💰 Cost-Sensitive Workloads

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

→ Use Mistral Small 4 — 33% cheaper input, 50% 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 Small 4 for cost at scale, GPT-oss 120B if quality matters more

🔬 Prototyping & Testing

Development, experimentation, and non-critical workloads.

→ Use Mistral Small 4 — same context (128K), much cheaper

Track price changes for both models

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Frequently Asked Questions

Is Mistral Small 4 cheaper than GPT-oss 120B?

Yes. Mistral Small 4 costs $0.1 input / $0.3 output per 1M tokens, while GPT-oss 120B costs $0.15 input / $0.6 output. That's 33% cheaper on input and 50% cheaper on output.

How much can I save switching to Mistral Small 4?

For a typical workload (1M input + 500K output tokens/month), Mistral Small 4 costs $0.25/month vs $0.45/month for GPT-oss 120B. That's a savings of $0.20/month (50%).

Which should I choose: GPT-oss 120B or Mistral Small 4?

Choose Mistral Small 4 for cost efficiency. Choose GPT-oss 120B for OpenAI ecosystem benefits. Both have 128K context windows.