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Comparison · 3 models · Updated Nov 2, 2026

Aion-RP 1.0 (8B) vs Aya Expanse 32B vs Nova Pro

Nova Pro comes out ahead, 49 to 32 and 24 on our weighted score, though Aya Expanse 32B is 46% cheaper per token.

  1. Aion Labs

    Aion-RP 1.0 (8B)

    Released Feb 4, 2025

    24/100
    • ECI—
    • Price$0.80 / $1.60
    • Context33K
    Full specs Remove Aion-RP 1.0 (8B)

  2. Cohere

    Aya Expanse 32B

    Released Oct 24, 2024

    32/100
    • ECI—
    • Price$0.50 / $1.50
    • Context128K
    Full specs Remove Aya Expanse 32B
  3. Our pick

    Amazon

    Nova Pro

    Released Dec 3, 2024

    49/100
    • ECI—
    • Price$0.80 / $3.20
    • Context300K
    Full specs Remove Nova Pro
01 — Verdict

Nova Pro is our pick

Nova Pro is the better all-round choice, scoring 49/100 against Aya Expanse 32B (32) and Aion-RP 1.0 (8B) (24). It leads on inputs & features and context window. Aya Expanse 32B wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. 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 priceAya Expanse 32BAya Expanse 32B $0.75 · Aion-RP 1.0 (8B) $1.00 · Nova Pro $1.40 per 1M tokens (3:1 blend)
  • Longest contextNova ProNova Pro 300,000 · Aya Expanse 32B 128,000 · Aion-RP 1.0 (8B) 32,768 tokens
  • Widest inputsNova ProAion-RP 1.0 (8B): Text · Aya Expanse 32B: Text · Nova Pro: Text, Images, PDFs, Video
  • Self-hostingAion-RP 1.0 (8B) and Aya Expanse 32BPublishes downloadable weights (CC-BY-NC-4.0)
How the score is built
MeasureWeightAion-RP 1.0 (8B)Aya Expanse 32BNova Pro
Price50%485341
Inputs & features30%0070
Context window20%02439
Overall100%24/10032/10049/100

Left out because at least one model lacks the data: capability. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Aion-RP 1.0 (8B) vs Aya Expanse 32B vs Nova Pro specifications side by side
SpecificationAion-RP 1.0 (8B)Aion LabsAya Expanse 32BCohereNova ProAmazon
Capability
Capabilities Index (ECI)———
ECI rank———
Price per million tokens
Input$0.80$0.50 (best)$0.80
Output$1.60$1.50 (best)$3.20
Cached input——$0.20
Blended (3:1)$1.00$0.75 (best)$1.40
Long-context rateSame rateSame rateSame rate
Price sourceMedian of 4 providersOfficial Cohere APIOfficial Amazon Bedrock API
Limits
Context window32,768 tokens128,000 tokens300,000 tokens (best)
Max output29,491 tokens (best)4,000 tokens10,000 tokens
Inputs and features
TextYesYesYes
ImagesNoNoYes
PDFsNoNoYes
AudioNoNoNo
VideoNoNoYes
ReasoningNoNoNo
Tool callingNoNoYes
Structured outputNoNoNo
Availability
WeightsOpenOpenCC-BY-NC-4.0Proprietary
API model ID—c4ai-aya-expanse-32bamazon.nova-pro-v1:0
API providers429 (best)
ReleasedFeb 4, 2025Oct 24, 2024Dec 3, 2024
Knowledge cutoffDec 31, 2023—Oct 2024
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Aion-RP 1.0 (8B)$11.20
  • Aya Expanse 32B$8.00
  • Nova Pro$14.40
04 — Questions

Which should you choose?

Which is better: Aion-RP 1.0 (8B), Aya Expanse 32B or Nova Pro?

Nova Pro is the better all-round choice, scoring 49/100 against Aya Expanse 32B (32) and Aion-RP 1.0 (8B) (24). It leads on inputs & features and context window. Aya Expanse 32B wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Aion-RP 1.0 (8B), Aya Expanse 32B or Nova Pro?

Aya Expanse 32B is cheaper at $0.50 input / $1.50 output per million tokens (official Cohere API price). Aion-RP 1.0 (8B) costs $0.80 input / $1.60 output per million tokens (median across 4 API providers); Nova Pro costs $0.80 input / $3.20 output per million tokens (official Amazon Bedrock API price). At a typical mix of three input tokens to one output token, that is $0.75 per million tokens for Aya Expanse 32B versus $1.00 for Aion-RP 1.0 (8B) (1.3× as much) and $1.40 for Nova Pro (1.9× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers all three models yet. Aion-RP 1.0 (8B) has not been scored yet, Aya Expanse 32B has not been scored yet and Nova Pro has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Aion-RP 1.0 (8B), Aya Expanse 32B and Nova Pro yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Note that Aion-RP 1.0 (8B) and Aya Expanse 32B does not support tool calling, which most coding agents need.

Which has the bigger context window?

Nova Pro has the largest context window at 300,000 tokens, against 128,000 for Aya Expanse 32B and 32,768 for Aion-RP 1.0 (8B). Maximum output per response: Aion-RP 1.0 (8B) up to 29,491, Aya Expanse 32B up to 4,000, Nova Pro up to 10,000 tokens.

Which can read images, PDFs, audio or video?

Aion-RP 1.0 (8B) accepts text; Aya Expanse 32B accepts text; Nova Pro accepts text, images, PDFs and video. Nova Pro handles the widest range of inputs.

Are any of these open source?

Aion-RP 1.0 (8B) and Aya Expanse 32B publishes its weights (CC-BY-NC-4.0) and can be self-hosted; Nova Pro is proprietary.

Which is newer?

Aion-RP 1.0 (8B) is the newest, released Feb 4, 2025. Nova Pro came out Dec 3, 2024; Aya Expanse 32B came out Oct 24, 2024. Knowledge cutoff: Aion-RP 1.0 (8B) Dec 31, 2023, Nova Pro Oct 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 Nov 2, 2026.

05 — Keep comparing

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