Nemotron 3.5 Super VL (free) is free for input tokens while GPT-6.1 Terra Pro costs $1 per 1M tokens.
API cost decision in 10 seconds
NewGPT-6.1 Terra Pro vs NewNemotron 3.5 Super VL (free)
Pick Nemotron 3.5 Super VL (free) for lower cost; pick GPT-6.1 Terra Pro only if the larger context window matters more.
Budget verdict
Pick Nemotron 3.5 Super VL (free) for lower cost; pick GPT-6.1 Terra Pro only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Nemotron 3.5 Super VL (free) is estimated at $0 vs $3.5 for GPT-6.1 Terra Pro, saving $3.5 (100% lower).
GPT-6.1 Terra Pro has more context, but Nemotron 3.5 Super VL (free) saves $3.5 on the standard workload. At 10x that traffic, the same price gap is about $35. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Nemotron 3.5 Super VL (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | GPT-6.1 Terra Pro | Nemotron 3.5 Super VL (free) |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Nemotron 3.5 Super VL (free) | $7.5 | $0 |
| Balanced workload | 1M input + 1M output | Nemotron 3.5 Super VL (free) | $6 | $0 |
| Output-heavy chatbot | 1M input + 5M output | Nemotron 3.5 Super VL (free) | $26 | $0 |
Nemotron 3.5 Super VL (free) is free for output tokens while GPT-6.1 Terra Pro costs $5 per 1M tokens.
GPT-6.1 Terra Pro has 50K more context (1.05x larger).
Nemotron 3.5 Super VL (free) is free for the standard workload while the other model is estimated at $3.5.
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
Nemotron 3.5 Super VL (free) has the lower input price; Nemotron 3.5 Super VL (free) has the lower output price; GPT-6.1 Terra Pro offers the larger context window. For the 1M input plus 500K output sample, Nemotron 3.5 Super VL (free) is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $3.5 for GPT-6.1 Terra Pro and $0 for Nemotron 3.5 Super VL (free).
Choose GPT-6.1 Terra Pro when you care most about larger context window.
Choose Nemotron 3.5 Super VL (free) when you care most about lower input-token price, and lower output-token price.
- On the standard 1M input plus 500K output workload, Nemotron 3.5 Super VL (free) is estimated at $0 vs $3.5 for GPT-6.1 Terra Pro, saving $3.5 (100% lower).
- Nemotron 3.5 Super VL (free) is free for the standard workload while the other model is estimated at $3.5.
- Nemotron 3.5 Super VL (free) is free for input tokens while GPT-6.1 Terra Pro costs $1 per 1M tokens.
- Nemotron 3.5 Super VL (free) is free for output tokens while GPT-6.1 Terra Pro costs $5 per 1M tokens.
- GPT-6.1 Terra Pro has 50K more context (1.05x larger).
| Feature | NewGPT-6.1 Terra Pro (OpenAI) | NewNemotron 3.5 Super VL (free) (NVIDIA) |
|---|---|---|
| Input Price prompt tokens per 1M | $1 | $0 |
| Completion Price per 1M tokens | $5 | $0 |
| Sample Workload Cost 1M input + 500K output | $3.5 | $0 |
| Context Window | 1.05M | 1M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Nemotron 3.5 Super VL (free) | On the standard 1M input plus 500K output workload, Nemotron 3.5 Super VL (free) is estimated at $0 vs $3.5 for GPT-6.1 Terra Pro, saving $3.5 (100% lower). |
| High-volume input processing | Nemotron 3.5 Super VL (free) | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Nemotron 3.5 Super VL (free) | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | GPT-6.1 Terra Pro | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- gpt-oss-120b (free) can replace GPT-6.1 Terra Pro when lower sample workload cost matters most: $0.
- gpt-oss-20b (free) can replace GPT-6.1 Terra Pro when lower sample workload cost matters most: $0.
- gpt-oss-20b can replace GPT-6.1 Terra Pro when lower sample workload cost matters most: $0.06.
- gpt-oss-20b (batch) can replace GPT-6.1 Terra Pro when lower sample workload cost matters most: $0.08.
- Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- Llama 4 Scout offers 1.31M context with $0.25 sample workload cost.
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Open NVIDIA modelsGPT-6.1 Terra Pro is the same underlying model as [GPT-6.1 Terra](https://openrouter.ai/openai/gpt-6.1-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...
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