// head_to_head
Nemotron 3 Nano Omni (free) vs SpaceXAI: Grok 4.7
Published LiveBench scores across all seven categories, live list pricing, context windows, and the measured cost of a point of capability — for both models, side by side.
Nemotron 3 Nano Omni (free) is the cheaper of the two; neither can be ranked on quality here.
Nemotron 3 Nano Omni (free) does not have a published LiveBench run, so this comparison covers price, context and declared capabilities only. A missing score means "not evaluated", not "worse" — the right way to separate these two is an eval on your own workload.
nvidia
Nemotron 3 Nano Omni (free)
- Blended / 1M
- Free
- Context
- 256K
- Released
- Apr 28, 2026
- Overall score
- Not evaluated
x-ai
SpaceXAI: Grok 4.7
- Blended / 1M
- $2.40
- Context
- 500K
- Released
- Sep 21, 2026
- Overall score
- 77.4
Specs and pricing
| Metric | Nemotron 3 Nano Omni (free) | SpaceXAI: Grok 4.7 |
|---|---|---|
| LiveBench overall Mean of the seven LiveBench category scores, 0–100. Higher is better. | — | 77.4 |
| Cost per point Measured benchmark spend divided by overall score — dollars per point of capability. | — | $0.4062 |
| Blended price / 1M 3:1 input:output mix, the usual shape of production traffic. | Freewin | $2.40 |
| Input price / 1M | Freewin | $1.60 |
| Output price / 1M | Freewin | $4.80 |
| Cached input / 1M Price of an input token served from the prompt cache, where the provider publishes one. | — | $0.400 |
| Context window | 256K | 500Kwin |
| Max output tokens | 66K | 450Kwin |
Benchmarks by category
An overall score averages away the thing you probably care about. These are the seven LiveBench categories scored separately — Nemotron 3 Nano Omni (free) on top, SpaceXAI: Grok 4.7 below, both out of 100.
What each one costs to run
Per-token prices are hard to feel. These are monthly list costs for both models across five workload shapes, using each provider's published cached-input rate where there is one.
| Workload | Nemotron 3 Nano Omni (free) | SpaceXAI: Grok 4.7 |
|---|---|---|
| Support chatbot 1.2K in / 400 out × 200K requests | $0/mo | $681.60/mo |
| RAG assistant 8K in / 600 out × 100K requests | $0/mo | $1,088/mo |
| Coding agent 40K in / 4K out × 20K requests | $0/mo | $992.00/mo |
| Document extraction 20K in / 1.5K out × 50K requests | $0/mo | $1,900/mo |
| Bulk classification 500 in / 20 out × 5M requests | $0/mo | $3,880/mo |
Which should you pick?
You need to fit large documents in one call
SpaceXAI: Grok 4.7
Wider context window — 500K against 256K.
You are cost-constrained
Nemotron 3 Nano Omni (free)
Cheaper on blended list price at Free per million tokens.
Nemotron 3 Nano Omni (free) vs SpaceXAI: Grok 4.7 FAQ
Which is better, Nemotron 3 Nano Omni (free) or SpaceXAI: Grok 4.7?
Nemotron 3 Nano Omni (free) is the cheaper of the two; neither can be ranked on quality here. Nemotron 3 Nano Omni (free) does not have a published LiveBench run, so this comparison covers price, context and declared capabilities only. A missing score means "not evaluated", not "worse" — the right way to separate these two is an eval on your own workload.
Is Nemotron 3 Nano Omni (free) cheaper than SpaceXAI: Grok 4.7?
Nemotron 3 Nano Omni (free) is cheaper. On a 3:1 input:output blend, Nemotron 3 Nano Omni (free) lists at Free per million tokens and SpaceXAI: Grok 4.7 at $2.40. Input and output are priced separately — Nemotron 3 Nano Omni (free) charges Free in and Free out, SpaceXAI: Grok 4.7 charges $1.60 and $4.80 — so the model that looks cheaper flips depending on how output-heavy your workload is.
Does Nemotron 3 Nano Omni (free) or SpaceXAI: Grok 4.7 have a bigger context window?
SpaceXAI: Grok 4.7 has the larger context window: 256K for Nemotron 3 Nano Omni (free) against 500K for SpaceXAI: Grok 4.7. Note that a window you can fill is not a window you should fill — retrieval quality usually degrades well before the limit, and you pay for every token you put in it.
Do Nemotron 3 Nano Omni (free) and SpaceXAI: Grok 4.7 support prompt caching?
SpaceXAI: Grok 4.7 publishes a cached-input rate of $0.400 per million tokens against a full input rate of $1.60. The catalogue lists no separate cached rate for Nemotron 3 Nano Omni (free), which means the provider does not price it separately here — not that caching is unavailable.
Related comparisons
How these numbers are produced
- Price — provider list price from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
- Scores — LiveBench release 2026-06-25, using their own category map. Each model shows its strongest published run. A blank means “not evaluated”, never “bad”.
- Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
- “Win” — awarded only past a threshold: one full point on a benchmark score, 10% on a price, 25% on a context window. Anything tighter reports as a tie, because effort settings alone move a LiveBench score by more than that.
Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.