Molmo 72B vs Udio v2
Compare Molmo 72B and Udio v2: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.
Updated 2026-05-21 · By Abhishek Raj · Our methodology
| Feature | Molmo 72B | Udio v2 |
|---|---|---|
| Category | Vision | Audio |
| Parameters | 72B | ~5B |
| Context Window | 128K | N/A |
| Input Price | $0.04/1M tokens | $0.04/song/1M tokens |
| Output Price | $0.08/1M tokens | N/A/1M tokens |
| Latency | ~350ms | ~25s |
Choose Molmo 72B when:
- ✓ Visual grounding
- ✓ Object detection
- ✓ Research
Fully open, Good pointing/grounding, Transparent
Choose Udio v2 when:
- ✓ Music creation
- ✓ Jingles
- ✓ Devotional music
High-quality vocals, Genre variety, Lyric integration
Verdict: Molmo 72B vs Udio v2
For cost efficiency, Udio v2 wins at $0.04/song/1M input tokens. For speed, Udio v2 is faster at ~25s. Molmo 72B excels at Visual grounding while Udio v2 is better for Music creation. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.
Detailed Analysis
Pricing Comparison
Molmo 72B costs $0.04/1M input tokens and $0.08/1M output tokens. Udio v2 costs $0.04/song input and N/A output. Both models are similarly priced. XALEN offers batch processing at 50% discount on both models.
Performance & Context
Molmo 72B has a 128K context window with ~350ms latency. Udio v2 offers N/A context at ~25s. Molmo 72B has the larger context window.
Best For
Molmo 72B (Vision) is optimized for: Visual grounding, Object detection, Research. Udio v2 (Audio) works best for: Music creation, Jingles, Devotional music.
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 Molmo 72B
response_a = client.chat.completions.create(
model="molmo-72b",
messages=[{"role": "user", "content": "Your question here"}]
)
# Use Udio v2
response_b = client.chat.completions.create(
model="udio-v2",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, Molmo 72B or Udio v2?
Molmo 72B (Vision, 72B) offers Fully open. Udio v2 (Audio, ~5B) offers High-quality vocals. Choose Molmo 72B for Visual grounding or Udio v2 for Music creation.
How much does Molmo 72B cost vs Udio v2?
Molmo 72B: $0.04/1M input, $0.08/1M output. Udio v2: $0.04/song/1M input, N/A/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 Molmo 72B and Udio v2 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.