GPT-4.1 vs Hermes 3 70B

Compare GPT-4.1 and Hermes 3 70B: 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 GPT-4.1 Hermes 3 70B
CategoryFrontierOpen Source
Parameters~1.8T70B
Context Window1M128K
Input Price$0.10/1M tokens$0.04/1M tokens
Output Price$0.30/1M tokens$0.06/1M tokens
Latency~500ms~300ms

Choose GPT-4.1 when:

  • ✓ Complex reports
  • ✓ Code generation
  • ✓ Enterprise workflows
Key Strengths:

1M context, Best instruction following, Best coding

Choose Hermes 3 70B when:

  • ✓ Agent frameworks
  • ✓ Tool use
  • ✓ Structured output
Key Strengths:

Strong function calling, Community-tuned, Good reasoning

Verdict: GPT-4.1 vs Hermes 3 70B

For cost efficiency, Hermes 3 70B wins at $0.04/1M input tokens. For speed, Hermes 3 70B is faster at ~300ms. GPT-4.1 excels at Complex reports while Hermes 3 70B is better for Agent frameworks. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.

Detailed Analysis

Pricing Comparison

GPT-4.1 costs $0.10/1M input tokens and $0.30/1M output tokens. Hermes 3 70B costs $0.04 input and $0.06 output. Hermes 3 70B is 2.5x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

GPT-4.1 has a 1M context window with ~500ms latency. Hermes 3 70B offers 128K context at ~300ms. GPT-4.1 has the larger context window.

Best For

GPT-4.1 (Frontier) is optimized for: Complex reports, Code generation, Enterprise workflows. Hermes 3 70B (Open Source) works best for: Agent frameworks, Tool use, Structured output.

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 GPT-4.1
response_a = client.chat.completions.create(
    model="gpt-4-1",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use Hermes 3 70B
response_b = client.chat.completions.create(
    model="hermes-3-70b",
    messages=[{"role": "user", "content": "Your question here"}]
)

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Frequently Asked Questions

Which is better, GPT-4.1 or Hermes 3 70B?

GPT-4.1 (Frontier, ~1.8T) offers 1M context. Hermes 3 70B (Open Source, 70B) offers Strong function calling. Choose GPT-4.1 for Complex reports or Hermes 3 70B for Agent frameworks.

How much does GPT-4.1 cost vs Hermes 3 70B?

GPT-4.1: $0.10/1M input, $0.30/1M output. Hermes 3 70B: $0.04/1M 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 GPT-4.1 and Hermes 3 70B 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.