GLM 5.3 vs Nvidia Nemotron 3 Ultra 550B A55b
API pricing, context window and capabilities for GLM 5.3 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 wins on Terminal-Bench, on intelligence and on context window.
Price
Tied
Terminal-Bench
GLM 5.3
Intelligence
GLM 5.3
Context window
GLM 5.3
Key takeaways
who wins on what, from the published numbersGLM 5.3 wins
- Cheaper input ($0.079 vs $0.50 /1M)
- Larger context window (1M vs 262K)
- Higher max output (1M vs 203K)
- More serving providers (16 vs 3)
Nvidia Nemotron 3 Ultra 550B A55b wins
- Cheaper output ($3.08 vs $2.15 /1M)
Cheaper overall
Nvidia Nemotron 3 Ultra 550B A55b
$0.50 + $2.15 /1M
Larger context
GLM 5.3
1M
More providers
GLM 5.3
16 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. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
| GLM 5.3 | Nvidia Nemotron 3 Ultra 550B A55b | |
|---|---|---|
| Input $/1M | $0.079OpenRouter routed quote best | $0.50via DeepInfra |
| Output $/1M | $3.08via Sail | $2.15via Wandb best |
| Context window | 1M best | 262K |
| Max output | 1M best | 203K |
| Serving providers | 16 best | 3 |
| Date | Released Aug 14, 2026 | Released Jun 4, 2026 |
Benchmarks
Benchmark scores, side by side| GLM 5.3 | Nvidia Nemotron 3 Ultra 550B A55b | |
|---|---|---|
| Intelligence | 44.8 best | 22.9 |
| Terminal-Bench | 84% best | 54% |
| GPQA Diamond | 92% best | 87% |
| Output speed | 62 t/s | 166 t/s best |
| Latency (TTFT) | 3.50s | 1.12s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GLM 5.3
via OpenRouter
$5.20
Nvidia Nemotron 3 Ultra 550B A55b
via DeepInfra
$4.70
Capabilities
feature support, side by side| Feature | GLM 5.3 | 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 or Nvidia Nemotron 3 Ultra 550B A55b?
GLM 5.3 is cheaper for input ($0.079 vs $0.50 per 1M tokens) as an OpenRouter routed quote. Nvidia Nemotron 3 Ultra 550B A55b is cheaper for output ($3.08 vs $2.15 per 1M tokens) from Wandb.
What is the context window difference between GLM 5.3 and Nvidia Nemotron 3 Ultra 550B A55b?
GLM 5.3 has a 1M-token context window and Nvidia Nemotron 3 Ultra 550B A55b has 262K tokens, so GLM 5.3 can take a larger prompt.
How do GLM 5.3 and Nvidia Nemotron 3 Ultra 550B A55b compare on benchmarks?
On the tracked benchmarks, GLM 5.3 leads on Terminal-Bench, and GLM 5.3 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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