Compare · updated 2026-11-01
GPT-6 Luna vs DeepSeek V4 Pro
GPT-6 Luna is better at quick answers, writing, coding, reasoning, structured data, translation; DeepSeek V4 Pro is better at maths. GPT-6 Luna is the cheaper of the two on output.
Measured quality by task
| Task | GPT-6 Luna | DeepSeek V4 Pro | Better |
|---|---|---|---|
| Quick answers | 93/100 | 89/100 | GPT-6 Luna |
| Writing | 90/100 | 88/100 | GPT-6 Luna |
| Coding | 84/100 | 83/100 | GPT-6 Luna |
| Reasoning | 77/100 | 76/100 | GPT-6 Luna |
| Maths | 70/100 | 87/100 | DeepSeek V4 Pro |
| Structured data | 93/100 | 93/100 | GPT-6 Luna |
| Long documents | 88/100 | 88/100 | Tie |
| Translation | 90/100 | 89/100 | GPT-6 Luna |
Quality is Nivana’s measured score for each kind of task, from weekly pairwise evals judged by models from several labs. Prices are live AI Gateway list prices per million tokens. Updated 2026-11-01. How this is measured.
Price and context
| GPT-6 Luna | DeepSeek V4 Pro | |
|---|---|---|
| Lab | OpenAI | DeepSeek |
| Input per 1M tokens | $0.1 | $0.66 |
| Output per 1M tokens | $0.5 | $1.98 |
| Typical chat answer | $0.00050 | $0.00238 |
| Context window | 1.05M | 1M |
| Router picks it for | 16 of 24 request types | Fallback only |
Which should you use?
Use the one that wins the kind of work you do most, unless the price gap outweighs the quality gap for easy requests. Or don’t choose: Nivana scores both, and the rest of the pool, on every request and sends it to whichever is best for that request.
Questions
Is GPT-6 Luna better than DeepSeek V4 Pro?
On Nivana’s weekly evals GPT-6 Luna scores higher on 6 of 8 task types (quick answers, writing, coding, reasoning, structured data, translation) and DeepSeek V4 Pro on 1 (maths). Neither is better at everything.
Which is better for coding, GPT-6 Luna or DeepSeek V4 Pro?
GPT-6 Luna: 84/100 against 83/100 for DeepSeek V4 Pro on Nivana’s coding evals.
Which is better for writing, GPT-6 Luna or DeepSeek V4 Pro?
GPT-6 Luna: 90/100 against 88/100 for DeepSeek V4 Pro on Nivana’s writing evals.
Which is cheaper, GPT-6 Luna or DeepSeek V4 Pro?
GPT-6 Luna: $0.5 per million output tokens against $1.98 for DeepSeek V4 Pro, about 4.0× less. A typical chat answer costs about $0.0005 on GPT-6 Luna and $0.0024 on DeepSeek V4 Pro.
Or let the router pick, per request
Nivana sends every message to the model that scores best for it, sets how hard it thinks, and tells you which one answered. 2,000 free credits to start, no card.