GLM 5.3 Flash vs Nvidia Nemotron 3 Ultra 550B A55b
API pricing, context window and capabilities for GLM 5.3 Flash and Nvidia Nemotron 3 Ultra 550B A55b, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersGLM 5.3 Flash wins on price, on Terminal-Bench, on intelligence and on context window.
Price
GLM 5.3 Flash
Terminal-Bench
GLM 5.3 Flash
Intelligence
GLM 5.3 Flash
Context window
GLM 5.3 Flash
Key takeaways
who wins on what, from the published numbersGLM 5.3 Flash wins
- Cheaper input ($0.11 vs $0.50 /1M)
- Cheaper output ($0.35 vs $2.15 /1M)
- Larger context window (1M vs 262K)
- Higher max output (1M vs 203K)
- More serving providers (13 vs 3)
Nvidia Nemotron 3 Ultra 550B A55b wins
No clear edge on the tracked metrics.
Cheaper overall
GLM 5.3 Flash
$0.11 + $0.35 /1M
Larger context
GLM 5.3 Flash
1M
More providers
GLM 5.3 Flash
13 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower.
| GLM 5.3 Flash | Nvidia Nemotron 3 Ultra 550B A55b | |
|---|---|---|
| Input $/1M | $0.11via Sail best | $0.50via DeepInfra |
| Output $/1M | $0.35via Sail best | $2.15via Wandb |
| Context window | 1M best | 262K |
| Max output | 1M best | 203K |
| Serving providers | 13 best | 3 |
| Date | Released Aug 26, 2026 | Released Jun 4, 2026 |
Benchmarks
Benchmark scores, side by side| GLM 5.3 Flash | Nvidia Nemotron 3 Ultra 550B A55b | |
|---|---|---|
| Intelligence | 41.8 best | 22.9 |
| Terminal-Bench | 84% best | 54% |
| GPQA Diamond | 91% best | 87% |
| Output speed | 67 t/s | 166 t/s best |
| Latency (TTFT) | 2.80s | 1.12s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GLM 5.3 Flash
via Sail
$0.90
Nvidia Nemotron 3 Ultra 550B A55b
via DeepInfra
$4.70
Capabilities
feature support, side by side| Feature | GLM 5.3 Flash | Nvidia Nemotron 3 Ultra 550B A55b |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, GLM 5.3 Flash or Nvidia Nemotron 3 Ultra 550B A55b?
GLM 5.3 Flash is cheaper for input ($0.11 vs $0.50 per 1M tokens) from Sail. GLM 5.3 Flash is cheaper for output ($0.35 vs $2.15 per 1M tokens) from Sail.
What is the context window difference between GLM 5.3 Flash and Nvidia Nemotron 3 Ultra 550B A55b?
GLM 5.3 Flash has a 1M-token context window and Nvidia Nemotron 3 Ultra 550B A55b has 262K tokens, so GLM 5.3 Flash can take a larger prompt.
How do GLM 5.3 Flash and Nvidia Nemotron 3 Ultra 550B A55b compare on benchmarks?
On the tracked benchmarks, GLM 5.3 Flash leads on Terminal-Bench, and GLM 5.3 Flash leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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