Question 1

What is Mistral Medium 3.5?

Accepted Answer

Mistral Medium 3.5 is a model from Mistral, released on Apr 28, 2026. Mistral Medium 3 5 is a Mistral AI model for coding, reasoning, instruction following, or multimodal language tasks.

Question 2

How much does Mistral Medium 3.5 cost?

Accepted Answer

On the Respan gateway, input starts at $1.50 per 1M tokens on every provider, and output starts at $7.50 per 1M tokens on every provider, after gateway discounts.

Question 3

Which providers serve Mistral Medium 3.5 on Respan?

Accepted Answer

3 providers serve Mistral Medium 3.5: Mistral and OpenRouter. Mistral require your own provider API key (BYOK).

Question 4

What is Mistral Medium 3.5's context window?

Accepted Answer

Mistral Medium 3.5 accepts up to 262K tokens of context on its largest provider route.

Question 5

How do I use Mistral Medium 3.5 with the Respan gateway?

Accepted Answer

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "mistral/mistral-medium-3-5". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

Question 6

How fast is Mistral Medium 3.5?

Accepted Answer

Over the last 30 days of requests through the Respan gateway, the fastest provider was OpenRouter at 125 tokens per second, and the lowest response latency was 0.3 seconds on Mistral. Speed varies with request size and provider.

Question 7

Where does Mistral Medium 3.5 rank on the Respan Index?

Accepted Answer

Mistral Medium 3.5 scores 24.3 out of 100 on the Respan Index v1.1, ranking #84 of 138 models. By category: Coding 7.3, Agents 41.2, Reasoning 14.0, Knowledge & language 17.2 (estimated), and Human preference 46.6. The Respan Index combines independent and lab-reported benchmark results into one score, using benchmark data collected by llmmetric.com.

Question 8

How does Mistral Medium 3.5 score on benchmarks?

Accepted Answer

Mistral Medium 3.5 has 8 published benchmark scores, including SWE-bench Verified 77.6%, Tau3 Telecom 91.4, and LMArena Elo 1427. Each score links to where it was published; the data is collected by llmmetric.com.

Provider	Context	Input	Output
MistralBYOK only`mistral/mistral-medium-3-5`	262K	$1.50/M	$7.50/M
MistralBYOK only`mistral/mistral-medium-3.5`	262K	$1.50/M	$7.50/M
OpenRouter`openrouter/mistralai/mistral-medium-3-5`	262K	$1.50/M	$7.50/M

Mistral Medium 3.5

Providers

Certified where it counts.

Pricing

Cost by volume

Throughput and latency

Output speed

Response latency

Benchmarks

Respan Indexv1.1

Coding2

Agents

Apps