Compare · updated 2026-11-01

GPT-6.1 Sol vs Gemini Flash

GPT-6.1 Sol is better at quick answers, writing, coding, reasoning; Gemini Flash is better at maths, structured data, long documents, translation. Gemini Flash is the cheaper of the two on output.

Measured quality by task

TaskGPT-6.1 SolGemini FlashBetter
Quick answers91/10091/100GPT-6.1 Sol
Writing93/10081/100GPT-6.1 Sol
Coding93/10080/100GPT-6.1 Sol
Reasoning82/10074/100GPT-6.1 Sol
Maths79/10085/100Gemini Flash
Structured data91/10093/100Gemini Flash
Long documents91/10094/100Gemini Flash
Translation89/10092/100Gemini Flash

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-6.1 SolGemini Flash
LabOpenAIGoogle
Input per 1M tokens$2$0.75
Output per 1M tokens$10$3.75
Typical chat answer$0.010$0.00375
Context window1.05M1M
Router picks it forFallback only1 of 24 request types

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-6.1 Sol better than Gemini Flash?

On Nivana’s weekly evals GPT-6.1 Sol scores higher on 4 of 8 task types (quick answers, writing, coding, reasoning) and Gemini Flash on 4 (maths, structured data, long documents, translation). Neither is better at everything.

Which is better for coding, GPT-6.1 Sol or Gemini Flash?

GPT-6.1 Sol: 93/100 against 80/100 for Gemini Flash on Nivana’s coding evals.

Which is better for writing, GPT-6.1 Sol or Gemini Flash?

GPT-6.1 Sol: 93/100 against 81/100 for Gemini Flash on Nivana’s writing evals.

Which is cheaper, GPT-6.1 Sol or Gemini Flash?

Gemini Flash: $3.75 per million output tokens against $10 for GPT-6.1 Sol, about 2.7× less. A typical chat answer costs about $0.0037 on Gemini Flash and $0.010 on GPT-6.1 Sol.

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.