Yi Lightning vs Aya Expanse 32B

Compare Yi Lightning and Aya Expanse 32B: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.

Updated 2026-05-21 · By Abhishek Raj · Our methodology

All 01.AI models All Cohere models What is an LLM API? Python Quickstart What is inference?
Feature Yi Lightning Aya Expanse 32B
CategoryOpen SourceOpen Source
Parameters200B MoE32B
Context Window128K128K
Input Price$0.04/1M tokens$0.03/1M tokens
Output Price$0.08/1M tokens$0.06/1M tokens
Latency~300ms~250ms

Choose Yi Lightning when:

  • ✓ High-volume APIs
  • ✓ Fast Q&A
  • ✓ Real-time chatbots
Key Strengths:

Fast inference, Good multilingual, Strong reasoning

Choose Aya Expanse 32B when:

  • ✓ Multilingual apps
  • ✓ Translation
  • ✓ Global content
Key Strengths:

23 languages, Open weights, Strong multilingual

Verdict: Yi Lightning vs Aya Expanse 32B

For cost efficiency, Aya Expanse 32B wins at $0.03/1M input tokens. For speed, Aya Expanse 32B is faster at ~250ms. Yi Lightning excels at High-volume APIs while Aya Expanse 32B is better for Multilingual apps. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.

Detailed Analysis

Pricing Comparison

Yi Lightning costs $0.04/1M input tokens and $0.08/1M output tokens. Aya Expanse 32B costs $0.03 input and $0.06 output. Aya Expanse 32B is 1.3x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

Yi Lightning has a 128K context window with ~300ms latency. Aya Expanse 32B offers 128K context at ~250ms. Both have identical context windows.

Best For

Yi Lightning (Open Source) is optimized for: High-volume APIs, Fast Q&A, Real-time chatbots. Aya Expanse 32B (Open Source) works best for: Multilingual apps, Translation, Global content.

Try Both on XALEN

Both models are available through XALEN's OpenAI-compatible API. Switch between them by changing the model parameter:

from xalen import XALEN

client = XALEN(api_key="xln_test_YOUR_KEY")

# Use Yi Lightning
response_a = client.chat.completions.create(
    model="yi-lightning",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use Aya Expanse 32B
response_b = client.chat.completions.create(
    model="c4ai-aya-expanse-32b",
    messages=[{"role": "user", "content": "Your question here"}]
)

Start Building with XALEN

200+ AI models. One API. Pay-as-you-go.

Get API Key Try in Playground

Frequently Asked Questions

Which is better, Yi Lightning or Aya Expanse 32B?

Yi Lightning (Open Source, 200B MoE) offers Fast inference. Aya Expanse 32B (Open Source, 32B) offers 23 languages. Choose Yi Lightning for High-volume APIs or Aya Expanse 32B for Multilingual apps.

How much does Yi Lightning cost vs Aya Expanse 32B?

Yi Lightning: $0.04/1M input, $0.08/1M output. Aya Expanse 32B: $0.03/1M input, $0.06/1M output. Both available on XALEN with batch processing at 50% discount.

Can I use both models on XALEN?

Yes. XALEN provides 200+ models through a single OpenAI-compatible API. Switch between Yi Lightning and Aya Expanse 32B by changing the model parameter. No code changes needed.

Related Comparisons

Yi Lightning vs Gemma 3 27B Yi Lightning vs Llama 4 Scout Yi Lightning vs Llama 4 Maverick Yi Lightning vs Llama 3.3 70B Yi Lightning vs Llama 3.1 405B Yi Lightning vs Llama 3.1 70B Turbo

Last updated: 2026-05-21. Pricing and specifications may change. Check pricing page for latest rates.