LLMCost

Mistral: Mistral Medium 3 vs OpenAI: GPT-5.6 Terra Pro

On input price, Mistral: Mistral Medium 3 is ~5.0× cheaper. Verified 2026-10-21.

Mistral: Mistral Medium 3 $0.400/$2.00vsOpenAI: GPT-5.6 Terra Pro $2.00/$12.00

Verdict

On blended price (3:1 input:output), Mistral: Mistral Medium 3 is ~5.6× cheaper ($0.400/$2.00 vs $2.00/$12.00 per 1M tokens).

Pricing

Per-million-token list prices, verified 2026-10-21. Green marks the better value.

MetricMistral: Mistral Medium 3OpenAI: GPT-5.6 Terra Pro
Input / 1M$0.400$2.00
Output / 1M$2.00$12.00
Cache read / 1M$0.040$0.200
Blended (3:1)$0.800/1M$4.50/1M
Estimated monthly costMistral: Mistral Medium 3OpenAI: GPT-5.6 Terra Pro
Chatbot10,000 reqs · 800/400 tok$11.20$64.00
Coding agent5,000 reqs · 8000/2000 tok$36.00$200.00
RAG pipeline30,000 reqs · 4000/500 tok$78.00$420.00

Plug in your own numbers in the calculator, or paste a real bill into the Bill Shredder.

Specifications & capabilities

MetricMistral: Mistral Medium 3OpenAI: GPT-5.6 Terra Pro
Context window131K1.1M
Max output105K128K
Vision input✓✓
Tool calling✓✓
Reasoning–✓

Quality

Intelligence Index by Artificial Analysis (independent evaluations, 0–100).

Verified intelligence scores aren't available for both models yet. See the full leaderboard.

Performance

Measured by Artificial Analysis on live endpoints.

Output speed — higher is better
Mistral: Mistral Medium 3120 tok/s
OpenAI: GPT-5.6 Terra Pro80 tok/s
Latency (TTFT) — lower is better
Mistral: Mistral Medium 3800 ms
OpenAI: GPT-5.6 Terra Pro1,300 ms
MetricMistral: Mistral Medium 3OpenAI: GPT-5.6 Terra Pro
Cost per task$0.000007$0.000016

Provider

Infrastructure metrics for the organizations behind these models.

MetricMistral AIOpenAI
Listed endpoints1012
Reliability99.5%99.9%
Avg latency400 ms450 ms
Pricing tiersstandard, freestandard, batch, provisioned

Full details: Mistral: Mistral Medium 3 pricing · OpenAI: GPT-5.6 Terra Pro pricing