Yi Large vs MythoMax 13B

Compare Yi Large and MythoMax 13B: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.

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

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Feature Yi Large MythoMax 13B
CategoryOpen SourceOpen Source
Parameters300B13B
Context Window200K4K
Input Price$0.06/1M tokens$0.01/1M tokens
Output Price$0.12/1M tokens$0.02/1M tokens
Latency~450ms~100ms

Choose Yi Large when:

  • ✓ Long document analysis
  • ✓ Research
  • ✓ Complex tasks
Key Strengths:

200K context, Strong analysis, Good reasoning

Choose MythoMax 13B when:

  • ✓ Story generation
  • ✓ Creative content
  • ✓ Interactive fiction
Key Strengths:

Creative writing, Roleplay, Narrative quality

Verdict: Yi Large vs MythoMax 13B

For cost efficiency, MythoMax 13B wins at $0.01/1M input tokens. For speed, MythoMax 13B is faster at ~100ms. Yi Large excels at Long document analysis while MythoMax 13B is better for Story generation. 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 Large costs $0.06/1M input tokens and $0.12/1M output tokens. MythoMax 13B costs $0.01 input and $0.02 output. MythoMax 13B is 6.0x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

Yi Large has a 200K context window with ~450ms latency. MythoMax 13B offers 4K context at ~100ms. Yi Large has the larger context window.

Best For

Yi Large (Open Source) is optimized for: Long document analysis, Research, Complex tasks. MythoMax 13B (Open Source) works best for: Story generation, Creative content, Interactive fiction.

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 Large
response_a = client.chat.completions.create(
    model="yi-large",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use MythoMax 13B
response_b = client.chat.completions.create(
    model="mythomax-13b",
    messages=[{"role": "user", "content": "Your question here"}]
)

Start Building with XALEN

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Get API Key Try in Playground

Frequently Asked Questions

Which is better, Yi Large or MythoMax 13B?

Yi Large (Open Source, 300B) offers 200K context. MythoMax 13B (Open Source, 13B) offers Creative writing. Choose Yi Large for Long document analysis or MythoMax 13B for Story generation.

How much does Yi Large cost vs MythoMax 13B?

Yi Large: $0.06/1M input, $0.12/1M output. MythoMax 13B: $0.01/1M input, $0.02/1M 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 Large and MythoMax 13B by changing the model parameter. No code changes needed.

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