How much does Yi-9B cost?

We do not hold a list price for Yi-9B yet, so we cannot compare its cost. Check the maker's own price page.

Is Yi-9B open source?

We list Yi-9B as closed: it is used through its maker's apps or API and its weights are not published (Epoch AI lists its access as "Unknown").

How good is Yi-9B compared with other AI models?

On the Epoch Capabilities Index, Yi-9B scores 107.4 (likely range 97.6 to 114.9), which ranks 232 of 270 models we track. Scores close together are a tie in practice.

How does Yi-9B compare with Nemotron-4 15B?

On quality, neither model leads clearly across the 1 measure both have. 1 measure is too close to call. See the full comparison for every measure.

How current are these numbers for Yi-9B?

The newest data on this page is dated 26 Oct 2026. Scores come from Epoch AI and Arena, prices from the open LiteLLM price list.

AI Rankings

Yi-9B: Score, Price and Context Window

Where Yi-9B from 01.AI ranks, what it costs and how much text it can read, in plain numbers with the sources.

Data updated 26 Oct 2026

01.AI
Closed weights
Released Mar 2024

Its score range overlaps with Nemotron-4 15B, the model just above it, so a small gap in rank is not a meaningful difference.

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Cutting-edge tasks: its overall Epoch score is in the lower part of the models we track.

These lines are worked out from the numbers on this page, not from hands-on testing.

Key facts

Overall score: 107.4; Rank 232 of 270. Likely range 97.6 to 114.9.
Weights: Closed; Used through the maker's apps or API (Epoch AI: Unknown).

We do not have an Arena human-vote rating, a list price, a context window size and benchmark results for Yi-9B yet. It is shown as "Not measured" rather than guessed.

How Yi-9B stacks up

Each strip shows every model we track as faint bars. The dot is this model. Better is always to the right, even for price.

Yi-9B compared with all models we trackOverall capability: 107.4. Better than 14% of the other 269 models.

Overall capability107.4
Better than 14% of the other 269 models
Epoch Capabilities Index: one score that combines many tests.

Compared with the other published models that have each measure. Data updated 26 Oct 2026.

Where Yi-9B ranks

Leaderboards it appears on, best placing first.

Overall intelligence107.4#232of 270

See all leaderboards

Similar models

Models from other makers with a similar overall score.

Learn more

Questions about Yi-9B

How much does Yi-9B cost?: We do not hold a list price for Yi-9B yet, so we cannot compare its cost. Check the maker's own price page.
Is Yi-9B open source?: We list Yi-9B as closed: it is used through its maker's apps or API and its weights are not published (Epoch AI lists its access as "Unknown").
How good is Yi-9B compared with other AI models?: On the Epoch Capabilities Index, Yi-9B scores 107.4 (likely range 97.6 to 114.9), which ranks 232 of 270 models we track. Scores close together are a tie in practice.
How does Yi-9B compare with Nemotron-4 15B?: On quality, neither model leads clearly across the 1 measure both have. 1 measure is too close to call. See the full comparison for every measure.
How current are these numbers for Yi-9B?: The newest data on this page is dated 26 Oct 2026. Scores come from Epoch AI and Arena, prices from the open LiteLLM price list.

Where this data comes from

Epoch AI: Benchmark data: Epoch AI, 'Capabilities & benchmarking', epoch.ai/benchmarks (CC BY 4.0). We match models across sources, rank them and show them in charts. Scores are not changed. Epoch AI does not endorse this site.

Newest data on this page: 26 Oct 2026. Prices are list prices and change often, so confirm on the maker's site before you buy. Sponsors never change a score or an order. How we calculate this · Report a mistake