Stable Image Ultra vs Molmo 72B
Compare Stable Image Ultra and Molmo 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
| Feature | Stable Image Ultra | Molmo 72B |
|---|---|---|
| Category | Image | Vision |
| Parameters | ~12B | 72B |
| Context Window | N/A | 128K |
| Input Price | $0.008/image/1M tokens | $0.04/1M tokens |
| Output Price | N/A/1M tokens | $0.08/1M tokens |
| Latency | ~4s | ~350ms |
Choose Stable Image Ultra when:
- ✓ Premium photography
- ✓ Marketing
- ✓ Product shoots
Highest quality, Photorealistic, Professional
Choose Molmo 72B when:
- ✓ Visual grounding
- ✓ Object detection
- ✓ Research
Fully open, Good pointing/grounding, Transparent
Verdict: Stable Image Ultra vs Molmo 72B
For cost efficiency, Stable Image Ultra wins at $0.008/image/1M input tokens. For speed, Molmo 72B is faster at ~350ms. Stable Image Ultra excels at Premium photography while Molmo 72B is better for Visual grounding. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.
Detailed Analysis
Pricing Comparison
Stable Image Ultra costs $0.008/image/1M input tokens and N/A/1M output tokens. Molmo 72B costs $0.04 input and $0.08 output. Stable Image Ultra is 5.0x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.
Performance & Context
Stable Image Ultra has a N/A context window with ~4s latency. Molmo 72B offers 128K context at ~350ms. Molmo 72B has the larger context window.
Best For
Stable Image Ultra (Image) is optimized for: Premium photography, Marketing, Product shoots. Molmo 72B (Vision) works best for: Visual grounding, Object detection, 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 Stable Image Ultra
response_a = client.chat.completions.create(
model="stable-image-ultra",
messages=[{"role": "user", "content": "Your question here"}]
)
# Use Molmo 72B
response_b = client.chat.completions.create(
model="molmo-72b",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, Stable Image Ultra or Molmo 72B?
Stable Image Ultra (Image, ~12B) offers Highest quality. Molmo 72B (Vision, 72B) offers Fully open. Choose Stable Image Ultra for Premium photography or Molmo 72B for Visual grounding.
How much does Stable Image Ultra cost vs Molmo 72B?
Stable Image Ultra: $0.008/image/1M input, N/A/1M output. Molmo 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 Stable Image Ultra and Molmo 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.