Aya Expanse 8B vs Palmyra X4
Palmyra X4 comes out ahead, 31 to 0 on our weighted score, and it is the cheaper option too.
CohereAya Expanse 8B
0/100- ECI—
- Price—
- Context8K
- Our pick
Writer
Palmyra X4
31/100- ECI—
- Price$2.50 / $10.00
- Context128K
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Make it a three-way comparison.
Palmyra X4 is our pick
Palmyra X4 is the better all-round choice, scoring 31/100 against Aya Expanse 8B (0). It leads on inputs & features and context window. The score weighs inputs & features 60%, context window 40%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest pricePalmyra X4Palmyra X4 $4.38 per 1M tokens (3:1 blend) · Aya Expanse 8B unpriced
- Longest contextPalmyra X4Palmyra X4 128,000 · Aya Expanse 8B 8,000 tokens
- Widest inputsSame inputsAya Expanse 8B: Text · Palmyra X4: Text
- Self-hostingAya Expanse 8BPublishes downloadable weights (CC-BY-NC-4.0)
| Measure | Weight | Aya Expanse 8B | Palmyra X4 |
|---|---|---|---|
| Inputs & features | 60% | 0 | 35 |
| Context window | 40% | 0 | 24 |
| Overall | 100% | 0/100 | 31/100 |
Left out because at least one model lacks the data: capability and price. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | Aya Expanse 8BCohere | Palmyra X4Writer |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | — | $2.50 |
| Output | — | $10.00 |
| Cached input | — | — |
| Blended (3:1) | — | $4.38 |
| Long-context rate | — | Same rate |
| Price source | — | Median of 1 providers |
| Limits | ||
| Context window | 8,000 tokens | 128,000 tokens (best) |
| Max output | 4,000 tokens | 4,096 tokens (best) |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | No | No |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | No | Yes |
| Tool calling | No | Yes |
| Structured output | No | No |
| Availability | ||
| Weights | OpenCC-BY-NC-4.0 | Proprietary |
| API model ID | — | — |
| API providers | — | 1 |
| Released | Oct 24, 2024 | Oct 9, 2024 |
| Knowledge cutoff | — | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Aya Expanse 8B—
- Palmyra X4$45.00
Which should you choose?
Which is better: Aya Expanse 8B or Palmyra X4?
Palmyra X4 is the better all-round choice, scoring 31/100 against Aya Expanse 8B (0). It leads on inputs & features and context window. The score weighs inputs & features 60%, context window 40%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, Aya Expanse 8B or Palmyra X4?
Palmyra X4 is cheaper at $2.50 input / $10.00 output per million tokens (median across 1 API provider). . At a typical mix of three input tokens to one output token, that is $4.38 per million tokens for Palmyra X4 versus . Aya Expanse 8B has no published per-token price.
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Aya Expanse 8B has not been scored yet and Palmyra X4 has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Aya Expanse 8B and Palmyra X4 yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Note that Aya Expanse 8B does not support tool calling, which most coding agents need.
Which has the bigger context window?
Palmyra X4 has the largest context window at 128,000 tokens, against 8,000 for Aya Expanse 8B. Maximum output per response: Aya Expanse 8B up to 4,000, Palmyra X4 up to 4,096 tokens.
Which can read images, PDFs, audio or video?
Aya Expanse 8B accepts text; Palmyra X4 accepts text. They handle the same number of input types.
Are any of these open source?
Aya Expanse 8B publishes its weights (CC-BY-NC-4.0) and can be self-hosted; Palmyra X4 is proprietary.
Which is newer?
Aya Expanse 8B is the newest, released Oct 24, 2024. Palmyra X4 came out Oct 9, 2024.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.
