# Pareto 26.9 Model Card

> Source: <https://unbiased.ai/model-card/>
> Published: 2026-09-18 13:39:44+00:00

## Published benchmark scores

Published scores. Tinted cells mark the best score on each test, including ties.

| Benchmark | Pareto 26.9 | Fable 5.1 | GPT 6 Astra | DeepSeek 4.1 Flash | 
|---|---|---|---|---|
| DeepSWE | 74 | 67 | 74 | 74 | 
| Terminal-Bench 4.0 | 51 | 56 | 58 | 31 | 
| MMMU-Pro | 78 | 81 | 87 | 77 | 
| HLE (no tools) | 49 | 55 | 54 | 39 | 
| ArXivMath | 88 | 72 | 91 | 28 | 

Measured task costs and a composite score have not been published for this release. Scores do not establish cost per completed task.

## Details and pricing

Pareto accepts text and image inputs. Use `pareto` as the model identifier. The published comparison set is Fable 5.1, GPT 6 Astra, and DeepSeek 4.1 Flash.

Per million tokens: $2.50 input, $0.25 cached input, and $7.50 output. Cached input is billed at 0.1 times the input rate. Actual spend depends on token usage and cache hits.

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