Mistral has released Timestral, its first family of time-series foundation models. They make probabilistic, multivariate forecasts and run on a CPU with no GPU. Mistral announced the models on October 15, 2026.
Four sizes, one architecture
All four models share the same architecture and training recipe.
| Model | Parameters | Latency on 8-thread CPU |
|---|---|---|
| Timestral-5M | 5M | about 10 ms |
| Timestral-28M | 28M | about 5x faster than 209M |
| Timestral-123M | 123M | about 3/4 of the 209M's time (score within 0.2%) |
| Timestral-209M | 209M | about 140 ms |
Latency is for a one-day forecast from three weeks of 15-minute data on a standard server CPU with 8 threads.
Benchmarks
Mistral's own numbers, for pretrained zero-shot models:
- The 209M model ranks first on GIFT-Eval, TIME and fev-bench, on all five metrics Mistral reports.
- It beats TimesFM-3 and Falcon-2.0 with fewer parameters.
- The 28M model beats Chronos-2, which is about four times larger, on GIFT-Eval and TIME.
- Results come from a single checkpoint, without ensembling. Mistral has submitted them to the GIFT-Eval and TIME leaderboards.
A technical report with full results is promised but not out yet.
What it can do
- Context of up to 32,768 time steps.
- Output: a probability forecast across 21 quantiles.
- Inputs: several target series, past-only covariates and known-future covariates, including categorical ones like day of week.
- Most training data is synthetic, followed by post-training on a mix of real and synthetic data.
License and access
- Model weights: Modified MIT license, on Hugging Face.
- Code: Apache 2.0, on GitHub.
- Mistral Forge offers fine-tuning on private data, custom covariates and deployment on-prem, in a VPC or air-gapped.
Sources
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