GPT-5.6 Sol vs Nvidia Nemotron 3 Ultra 550B A55b
API pricing, context window and capabilities for GPT-5.6 Sol 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 numbersGPT-5.6 Sol wins on Terminal-Bench, on intelligence and on context window. Nvidia Nemotron 3 Ultra 550B A55b wins on price.
Price
Nvidia Nemotron 3 Ultra 550B A55b
Terminal-Bench
GPT-5.6 Sol
Intelligence
GPT-5.6 Sol
Context window
GPT-5.6 Sol
Key takeaways
who wins on what, from the published numbersGPT-5.6 Sol wins
- Larger context window (1.1M vs 262K)
- More serving providers (6 vs 3)
- Has web search
Nvidia Nemotron 3 Ultra 550B A55b wins
- Cheaper input ($2.00 vs $0.50 /1M)
- Cheaper output ($10.00 vs $2.15 /1M)
- Higher max output (128K vs 203K)
Cheaper overall
Nvidia Nemotron 3 Ultra 550B A55b
$0.50 + $2.15 /1M
Larger context
GPT-5.6 Sol
1.1M
More providers
GPT-5.6 Sol
6 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.
| GPT-5.6 Sol | Nvidia Nemotron 3 Ultra 550B A55b | |
|---|---|---|
| Input $/1M | $2.00OpenRouter routed quote | $0.50via DeepInfra best |
| Output $/1M | $10.00OpenRouter routed quote | $2.15via Wandb best |
| Context window | 1.1M best | 262K |
| Max output | 128K | 203K best |
| Serving providers | 6 best | 3 |
| Date | Released Jul 9, 2026 | Released Jun 4, 2026 |
Benchmarks
Benchmark scores, side by side| GPT-5.6 Sol | Nvidia Nemotron 3 Ultra 550B A55b | |
|---|---|---|
| Intelligence | 47.0 best | 22.9 |
| Terminal-Bench | 90% best | 54% |
| GPQA Diamond | 94% best | 87% |
| Output speed | 94 t/s | 166 t/s best |
| Latency (TTFT) | 138.40s | 1.12s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GPT-5.6 Sol
via OpenRouter
$20
Nvidia Nemotron 3 Ultra 550B A55b
via DeepInfra
$4.70
Capabilities
feature support, side by side| Feature | GPT-5.6 Sol | 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, GPT-5.6 Sol or Nvidia Nemotron 3 Ultra 550B A55b?
Nvidia Nemotron 3 Ultra 550B A55b is cheaper for input ($2.00 vs $0.50 per 1M tokens) from DeepInfra. Nvidia Nemotron 3 Ultra 550B A55b is cheaper for output ($10.00 vs $2.15 per 1M tokens) from Wandb.
What is the context window difference between GPT-5.6 Sol and Nvidia Nemotron 3 Ultra 550B A55b?
GPT-5.6 Sol has a 1.1M-token context window and Nvidia Nemotron 3 Ultra 550B A55b has 262K tokens, so GPT-5.6 Sol can take a larger prompt.
How do GPT-5.6 Sol and Nvidia Nemotron 3 Ultra 550B A55b compare on benchmarks?
On the tracked benchmarks, GPT-5.6 Sol leads on Terminal-Bench, and GPT-5.6 Sol leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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