XTTS v2 vs Dolphin 2.9.3 72B

Compare XTTS v2 and Dolphin 2.9.3 72B: 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 XTTS v2 Dolphin 2.9.3 72B
CategorySpeechOpen Source
ParametersGenerative72B
Context WindowN/A128K
Input Price$0.015/1K/1M tokens$0.04/1M tokens
Output PriceN/A/1M tokens$0.08/1M tokens
Latency~300ms~350ms

Choose XTTS v2 when:

  • ✓ Voice readings
  • ✓ Temple announcements
  • ✓ Guided meditation
Key Strengths:

Natural prosody, Multiple Indian voices, Voice cloning

Choose Dolphin 2.9.3 72B when:

  • ✓ Creative writing
  • ✓ Unrestricted generation
  • ✓ Research
Key Strengths:

Uncensored, Strong instruction following, Versatile

Verdict: XTTS v2 vs Dolphin 2.9.3 72B

For cost efficiency, XTTS v2 wins at $0.015/1K/1M input tokens. For speed, XTTS v2 is faster at ~300ms. XTTS v2 excels at Voice readings while Dolphin 2.9.3 72B is better for Creative writing. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.

Detailed Analysis

Pricing Comparison

XTTS v2 costs $0.015/1K/1M input tokens and N/A/1M output tokens. Dolphin 2.9.3 72B costs $0.04 input and $0.08 output. XTTS v2 is 2.6x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

XTTS v2 has a N/A context window with ~300ms latency. Dolphin 2.9.3 72B offers 128K context at ~350ms. Dolphin 2.9.3 72B has the larger context window.

Best For

XTTS v2 (Speech) is optimized for: Voice readings, Temple announcements, Guided meditation. Dolphin 2.9.3 72B (Open Source) works best for: Creative writing, Unrestricted generation, Research.

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 XTTS v2
response_a = client.chat.completions.create(
    model="xtts-v2",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use Dolphin 2.9.3 72B
response_b = client.chat.completions.create(
    model="dolphin-2-9-3-72b",
    messages=[{"role": "user", "content": "Your question here"}]
)

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Frequently Asked Questions

Which is better, XTTS v2 or Dolphin 2.9.3 72B?

XTTS v2 (Speech, Generative) offers Natural prosody. Dolphin 2.9.3 72B (Open Source, 72B) offers Uncensored. Choose XTTS v2 for Voice readings or Dolphin 2.9.3 72B for Creative writing.

How much does XTTS v2 cost vs Dolphin 2.9.3 72B?

XTTS v2: $0.015/1K/1M input, N/A/1M output. Dolphin 2.9.3 72B: $0.04/1M input, $0.08/1M 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 XTTS v2 and Dolphin 2.9.3 72B 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.