Nemotron 3 Ultra is $0.75 cheaper per 1M input tokens (60% lower; 2.5x difference).
API cost decision in 10 seconds
NewNemotron 3 Ultra vs GPT-5 Codex
Pick Nemotron 3 Ultra when budget and context both matter.
Page updated:
Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Nemotron 3 Ultra when budget and context both matter.
On the standard 1M input plus 500K output workload, Nemotron 3 Ultra is estimated at $1.75 vs $6.25 for GPT-5 Codex, saving $4.5 (72% lower).
Cost-first pickNemotron 3 Ultra
Context-first pickNemotron 3 Ultra
Sample savings$4.572%
10x traffic gap$45
Nemotron 3 Ultra is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $45. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Nemotron 3 Ultra stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Nemotron 3 Ultra | GPT-5 Codex |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Nemotron 3 Ultra | $3.75 | $11.25 |
| Balanced workload | 1M input + 1M output | Nemotron 3 Ultra | $3 | $11.25 |
| Output-heavy chatbot | 1M input + 5M output | Nemotron 3 Ultra | $13 | $51.25 |
Nemotron 3 Ultra is $7.5 cheaper per 1M output tokens (75% lower; 4x difference).
Nemotron 3 Ultra has 600K more context (2.5x larger).
Nemotron 3 Ultra is $4.5 cheaper on the standard workload (72% lower).
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 Ultra has the lower input price; Nemotron 3 Ultra has the lower output price; Nemotron 3 Ultra offers the larger context window. For the 1M input plus 500K output sample, Nemotron 3 Ultra is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1.75 for Nemotron 3 Ultra and $6.25 for GPT-5 Codex.
Choose Nemotron 3 Ultra when you care most about lower input-token price, lower output-token price, and larger context window.
Choose GPT-5 Codex when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
- On the standard 1M input plus 500K output workload, Nemotron 3 Ultra is estimated at $1.75 vs $6.25 for GPT-5 Codex, saving $4.5 (72% lower).
- Nemotron 3 Ultra is $4.5 cheaper on the standard workload (72% lower).
- Nemotron 3 Ultra is $0.75 cheaper per 1M input tokens (60% lower; 2.5x difference).
- Nemotron 3 Ultra is $7.5 cheaper per 1M output tokens (75% lower; 4x difference).
- Nemotron 3 Ultra has 600K more context (2.5x larger).
| Feature | NewNemotron 3 Ultra (NVIDIA) | GPT-5 Codex (OpenAI) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.5 | $1.25 |
| Completion Price per 1M tokens | $2.5 | $10 |
| Sample Workload Cost 1M input + 500K output | $1.75 | $6.25 |
| Context Window | 1M | 400K |
| Release Date | ||
| Popularity | #91 | #111 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Nemotron 3 Ultra | On the standard 1M input plus 500K output workload, Nemotron 3 Ultra is estimated at $1.75 vs $6.25 for GPT-5 Codex, saving $4.5 (72% lower). |
| High-volume input processing | Nemotron 3 Ultra | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Nemotron 3 Ultra | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Nemotron 3 Ultra | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Nemotron 3 Ultra (free) can replace Nemotron 3 Ultra when lower sample workload cost matters most: $0.
- Nemotron 3 Super (free) can replace Nemotron 3 Ultra when lower sample workload cost matters most: $0.
- Nemotron 3 Nano 30B A3B (free) can replace Nemotron 3 Ultra when lower sample workload cost matters most: $0.
- Nemotron 3 Nano Omni (free) can replace Nemotron 3 Ultra when lower sample workload cost matters most: $0.
- Llama 4 Scout offers 10M context with $0.25 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
- Owl Alpha offers 1.05M context with $0 sample workload cost.
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