Swiss AI: Apertus v1.5 70B
Apertus v1.5 70B is a language model from Swiss AI released on Jul 24, 2026. It reads text, images and audio and writes text, with a 100K token context window and up to 8K tokens per reply.
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It costs $0.87 per million input tokens and $3.10 per million output tokens.
It supports tool calling, and its weights are open, so you can host it yourself.
- Modalities
- In / out price
- $0.87 / $3.10 per 1M
- Context
- 100K
- Max output
- 8K
- Released
- Jul 24, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Apertus v1.5 70B pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.87 / 1M tokens | |
|---|---|---|
| Output | $3.10 / 1M tokens |
What Apertus v1.5 70B costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call Apertus v1.5 70B through an OpenAI compatible API.
- Tools
tools - Temperature
temperature
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Apertus v1.5 70B questions
How much does the Apertus v1.5 70B API cost?
$0.87 per million input tokens and $3.10 per million output tokens. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Apertus v1.5 70B?
100,000 tokens of input, and it can write up to 8,192 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Does Apertus v1.5 70B support tool calling?
Yes. It accepts tool definitions, which is what an agent needs to call your APIs.
Is Apertus v1.5 70B open source?
Its weights are published, so you can run it on your own hardware or a cloud of your choice. Read the license before commercial use.
When was Apertus v1.5 70B released?
Jul 24, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Apertus v1.5 70B?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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