DeepSeek V3.1 vs GLM-4 Plus

Compare DeepSeek V3.1 and GLM-4 Plus: 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 DeepSeek V3.1 GLM-4 Plus
CategoryOpen SourceOpen Source
Parameters685B (37B active)130B
Context Window128K128K
Input Price$0.06/1M tokens$0.05/1M tokens
Output Price$0.10/1M tokens$0.09/1M tokens
Latency~400ms~350ms

Choose DeepSeek V3.1 when:

  • ✓ Production apps
  • ✓ Content generation
  • ✓ Multi-language
Key Strengths:

Improved quality, Better safety, Stronger multilingual

Choose GLM-4 Plus when:

  • ✓ Buddhist text analysis
  • ✓ Cross-cultural content
  • ✓ Bilingual apps
Key Strengths:

Strong bilingual, Good classical Chinese, Reliable

Verdict: DeepSeek V3.1 vs GLM-4 Plus

For cost efficiency, GLM-4 Plus wins at $0.05/1M input tokens. For speed, GLM-4 Plus is faster at ~350ms. DeepSeek V3.1 excels at Production apps while GLM-4 Plus is better for Buddhist text analysis. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.

Detailed Analysis

Pricing Comparison

DeepSeek V3.1 costs $0.06/1M input tokens and $0.10/1M output tokens. GLM-4 Plus costs $0.05 input and $0.09 output. GLM-4 Plus is 1.2x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

DeepSeek V3.1 has a 128K context window with ~400ms latency. GLM-4 Plus offers 128K context at ~350ms. Both have identical context windows.

Best For

DeepSeek V3.1 (Open Source) is optimized for: Production apps, Content generation, Multi-language. GLM-4 Plus (Open Source) works best for: Buddhist text analysis, Cross-cultural content, Bilingual apps.

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 DeepSeek V3.1
response_a = client.chat.completions.create(
    model="deepseek-v3-1",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use GLM-4 Plus
response_b = client.chat.completions.create(
    model="glm-4-plus",
    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, DeepSeek V3.1 or GLM-4 Plus?

DeepSeek V3.1 (Open Source, 685B (37B active)) offers Improved quality. GLM-4 Plus (Open Source, 130B) offers Strong bilingual. Choose DeepSeek V3.1 for Production apps or GLM-4 Plus for Buddhist text analysis.

How much does DeepSeek V3.1 cost vs GLM-4 Plus?

DeepSeek V3.1: $0.06/1M input, $0.10/1M output. GLM-4 Plus: $0.05/1M input, $0.09/1M 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 DeepSeek V3.1 and GLM-4 Plus 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.