Cohere, open weights

# C4ai Aya Expanse 8b

> C4ai Aya Expanse 8b by Cohere. Ranked #229 of 354 with a Noometry Index of 34.9. Scores, sources and comparisons.
- Canonical page: https://noometry.com/models/c4ai-aya-expanse-8b
- Last updated: 2026-10-10
- Title: C4ai Aya Expanse 8b Benchmarks, Price & Rank (October 2026)

C4ai Aya Expanse 8b by Cohere ranks 229th of 354 ranked models on the Noometry Index as of October 2026, with a score of 34.9. Its strongest category is reasoning, where it ranks 197th.

Last verified October 10, 2026

## Specifications

- **Noometry rank:** #229 of 354
- **Index score:** 34.9
- **Evidence:** Confirmed 15 results
- **Provider:** [![](/logos/cohere.svg) Cohere](https://noometry.com/providers/cohere)
- **Released:** Unknown
- **Weights:** Open weights
- **Reasoning:** Unknown
- **Context window:** —
- **Max output:** —
- **Input price:** Not listed
- **Output price:** Not listed
- **Blended price:** Not listed
- **Output speed:** Not measured
- **Value:** Not ranked
- **Knowledge cutoff:** Unknown

## Category scores

Each category score combines every public result we have in that category.

C4ai Aya Expanse 8b category scores

1.  Coding 33.8
2.  Reasoning 22.4
3.  Math 33.3
4.  Knowledge 33.6
5.  Multilingual 36.1
6.  Instruction Following 60.1
7.  Long Context 36.1
8.  Writing & Preference 39.0
9.  020406080

C4ai Aya Expanse 8b category ranks
| Category | Score | Rank | Results |
| --- | --- | --- | --- |
| [Coding](https://noometry.com/best/coding) | 33.8 | #252 | 1 |
| [Reasoning](https://noometry.com/best/reasoning) | 22.4 | #197 | 1 |
| [Math](https://noometry.com/best/math) | 33.3 | #203 | 1 |
| [Knowledge](https://noometry.com/best/knowledge) | 33.6 | #201 | 2 |
| [Multilingual](https://noometry.com/best/multilingual) | 36.1 | #242 | 1 |
| [Instruction Following](https://noometry.com/best/instruction-following) | 60.1 | #253 | 1 |
| [Long Context](https://noometry.com/best/long-context) | 36.1 | #236 | 1 |
| [Writing & Preference](https://noometry.com/best/writing) | 39.0 | #250 | 3 |

## Strengths and weaknesses

Categories where C4ai Aya Expanse 8b places highest and lowest among the models ranked in each, with its score against that category's median.

### Strongest categories

C4ai Aya Expanse 8b: strongest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Reasoning](https://noometry.com/best/reasoning) | 22.4 | −1.2 | #197 of 350, top 57% |
| [Math](https://noometry.com/best/math) | 33.3 | −3.3 | #203 of 327, top 63% |
| [Knowledge](https://noometry.com/best/knowledge) | 33.6 | −3.7 | #201 of 314, top 65% |

### Weakest categories

C4ai Aya Expanse 8b: weakest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Instruction Following](https://noometry.com/best/instruction-following) | 60.1 | −11.1 | #253 of 305, top 83% |
| [Multilingual](https://noometry.com/best/multilingual) | 36.1 | −11.3 | #242 of 297, top 82% |
| [Writing & Preference](https://noometry.com/best/writing) | 39.0 | −14.8 | #250 of 312, top 81% |

## Closest competitors

The models ranked just above and below C4ai Aya Expanse 8b. When scores are this close, price and speed are often the better way to choose.

Models ranked closest to C4ai Aya Expanse 8b
| Model | Rank | Score | Blended $/M | Speed |  |
| --- | --- | --- | --- | --- | --- |
| [Qwen3 14B](https://noometry.com/models/qwen3-14b) | #225 | 35.5 | $0.61 | 79 | [Compare](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-qwen3-14b) |
| [DeepSeek-R1-Distill-Qwen-32B](https://noometry.com/models/deepseek-r1-distill-qwen-32b) | #226 | 35.5 | — | — | [Compare](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-deepseek-r1-distill-qwen-32b) |
| [Magistral Medium](https://noometry.com/models/magistral-medium) | #227 | 35.2 | $2.75 | 0 | [Compare](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-magistral-medium) |
| [Gemini 2.0 Flash (Feb 2025)](https://noometry.com/models/gemini-2-0-flash) | #228 | 35.1 | — | 92 | [Compare](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-gemini-2-0-flash) |
| [Qwen Max](https://noometry.com/models/qwen-max) | #230 | 34.7 | $2.80 | — | [Compare](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-qwen-max) |
| [Claude 3.5 Sonnet](https://noometry.com/models/claude-3-5-sonnet) | #231 | 34.6 | — | — | [Compare](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-claude-3-5-sonnet) |
| [Qwen3 Coder Next](https://noometry.com/models/qwen3-coder-next) | #232 | 34.3 | $0.29 | — | [Compare](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-qwen3-coder-next) |
| [Devstral Small 2505](https://noometry.com/models/devstral-small) | #233 | 34.3 | $0.15 | 88 | [Compare](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-devstral-small) |

Sponsored placements are available on pages like this one. [Advertise on Noometry](https://noometry.com/advertise)

## Benchmark results

Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.

### Coding

C4ai Aya Expanse 8b Coding benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Coding](https://noometry.com/benchmarks/arena-coding) | 1160 | #255 of 294, top 87% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Reasoning

C4ai Aya Expanse 8b Reasoning benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Hard Prompts](https://noometry.com/benchmarks/arena-hard-prompts) | 1156 | #252 of 297, top 85% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Math

C4ai Aya Expanse 8b Math benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Math](https://noometry.com/benchmarks/arena-math) | 1168 | #244 of 285, top 86% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Knowledge

C4ai Aya Expanse 8b Knowledge benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [Vectara Hallucination Rate](https://noometry.com/benchmarks/vectara-hallucination) (lower is better) | 9.5% | #49 of 96, top 52% |  | [Vectara Hallucination Leaderboard](https://github.com/vectara/hallucination-leaderboard) |  |
| [LMArena Expert](https://noometry.com/benchmarks/arena-expert) | 1153 | #234 of 273, top 86% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Multilingual

C4ai Aya Expanse 8b Multilingual benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Non-English](https://noometry.com/benchmarks/arena-non-english) | 1180 | #242 of 297, top 82% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Chinese](https://noometry.com/benchmarks/arena-chinese) | 1181 | #240 of 285, top 85% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena German](https://noometry.com/benchmarks/arena-german) | 1188 | #195 of 231, top 85% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Japanese](https://noometry.com/benchmarks/arena-japanese) | 1120 | #183 of 211, top 87% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Russian](https://noometry.com/benchmarks/arena-russian) | 1197 | #235 of 283, top 84% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Instruction Following

C4ai Aya Expanse 8b Instruction Following benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Instruction Following](https://noometry.com/benchmarks/arena-instruction-following) | 1155 | #252 of 298, top 85% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Long Context

C4ai Aya Expanse 8b Long Context benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Longer Query](https://noometry.com/benchmarks/arena-longer-query) | 1191 | #245 of 291, top 85% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Writing & Preference

C4ai Aya Expanse 8b Writing & Preference benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Text](https://noometry.com/benchmarks/arena-text) | 1185 | #250 of 297, top 85% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Creative Writing](https://noometry.com/benchmarks/arena-creative-writing) | 1168 | #246 of 295, top 84% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Multi-Turn](https://noometry.com/benchmarks/arena-multi-turn) | 1160 | #250 of 295, top 85% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

## Compare C4ai Aya Expanse 8b

-   [C4ai Aya Expanse 8b vs Gemini 2.0 Flash (Feb 2025)](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-gemini-2-0-flash)
-   [C4ai Aya Expanse 8b vs Qwen Max](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-qwen-max)
-   [C4ai Aya Expanse 8b vs Magistral Medium](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-magistral-medium)
-   [C4ai Aya Expanse 8b vs Claude 3.5 Sonnet](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-claude-3-5-sonnet)
-   [C4ai Aya Expanse 8b vs DeepSeek-R1-Distill-Qwen-32B](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-deepseek-r1-distill-qwen-32b)
-   [C4ai Aya Expanse 8b vs Qwen3 Coder Next](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-qwen3-coder-next)
-   [C4ai Aya Expanse 8b vs GPT-6 Astra](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-gpt-6-astra)
-   [C4ai Aya Expanse 8b vs Claude Fable 5.1](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-claude-fable-5-1)
-   [C4ai Aya Expanse 8b vs Gemini 3.8 Flash](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-gemini-3-8-flash)
-   [C4ai Aya Expanse 8b vs Kimi K3](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-kimi-k3)
-   [C4ai Aya Expanse 8b vs Grok 4.6](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-grok-4-6)
-   [C4ai Aya Expanse 8b vs Qwen3.8 Max](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-qwen3-8-max)
-   [C4ai Aya Expanse 8b vs GLM-5.3](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-glm-5-3)
-   [C4ai Aya Expanse 8b vs Muse Spark 1.3](https://noometry.com/compare/c4ai-aya-expanse-8b-vs-muse-spark-1-3)

## Other Cohere models

-   [Command A](https://noometry.com/models/command-a)36.5
-   [C4ai Aya Expanse 32b](https://noometry.com/models/c4ai-aya-expanse-32b)35.9
-   [Command R+](https://noometry.com/models/command-r-plus)32.4
-   [Command R](https://noometry.com/models/command-r)31.4
-   [Command A Plus](https://noometry.com/models/command-a-plus)
-   [Command A Translate](https://noometry.com/models/command-a-translate)
-   [Command A Vision](https://noometry.com/models/command-a-vision)
-   [Command R7B](https://noometry.com/models/command-r7b)

## Frequently asked questions

### How good is C4ai Aya Expanse 8b?

C4ai Aya Expanse 8b by Cohere ranks 229th of 354 ranked models on the Noometry Index as of October 2026, with a score of 34.9. Its strongest category is reasoning, where it ranks 197th.

### Is C4ai Aya Expanse 8b open source?

Yes. C4ai Aya Expanse 8b's weights are downloadable; check the license for commercial terms.

### What are C4ai Aya Expanse 8b's strengths and weaknesses?

Relative to other ranked models, C4ai Aya Expanse 8b places best in reasoning, math, knowledge and lowest in instruction following, multilingual, writing & preference.

### What is C4ai Aya Expanse 8b best at?

Its best category is reasoning, where it ranks 197th on Noometry.

### Cite this page

Noometry. (2026). C4ai Aya Expanse 8b benchmarks and pricing. Retrieved October 10, 2026, from https://noometry.com/models/c4ai-aya-expanse-8b

Quote Noometry with a link back to this page. It is also available in [Markdown](https://noometry.com/md/models/c4ai-aya-expanse-8b.md).