Gemini API vs Grok API
Two model provider options for LLM API. When each fits, what it costs, who moves from one to the other, and what makers who chose it say.
Gemini APIModel providerIn Lovable, ReplitWhich fits you
- You want the strongest general models and the widest ecosystem of examples and integrations
Use it whenYou feed in whole documents, video or audio, or want to start without paying.
Trade-offFree-tier prompts may be used to improve Google's products, so paid tier is the one for user data.
- Grok models with built-in web and X search, plus image, video and voice APIs.
Use it whenYour feature needs live posts from X or current web results in the model's answers.
Trade-offReal-time data only arrives when you enable the search tools, which are billed as tool calls.
At a glance
| Used by | 99 makers' products · 227 open-source projects | 6 makers' products · 33 open-source projects |
|---|---|---|
| Cost at default usageinput tokens 50 million tokens, output tokens 10 million tokens | $28/mo Gemini 3.1 Flash-Lite | — |
| Downloads | 19.2M/wk6.5× vs npm | 2.3M/wk4.8× vs npm |
| Pricing | Free tier with rate limits; pay per token. · paid from Pay per token | Pay per token; image, video and voice priced per unit. · paid from Pay per token |
| Free tier | Yes | No |
| Open source | No | No |
Cost as you grow
At 1M tokens Gemini API costs less ($0.55 vs $1.75); and still does at 5B tokens ($2,750 vs $8,750).
The numbers, plan by plan
| Input tokens per month | Gemini API | Grok API |
|---|---|---|
| 1 | $0.55 Gemini 3.1 Flash-Lite | $1.75 Grok 4.3 |
| 5 | $2.75 Gemini 3.1 Flash-Lite | $8.75 Grok 4.3 |
| 10 | $5.50 Gemini 3.1 Flash-Lite | $18 Grok 4.3 |
| 50 | $28 Gemini 3.1 Flash-Lite | $88 Grok 4.3 |
| 100 | $55 Gemini 3.1 Flash-Lite | $175 Grok 4.3 |
| 500 | $275 Gemini 3.1 Flash-Lite | $875 Grok 4.3 |
| 1,000 | $550 Gemini 3.1 Flash-Lite | $1,750 Grok 4.3 |
| 5,000 | $2,750 Gemini 3.1 Flash-Lite | $8,750 Grok 4.3 |
From each vendor's pricing page: Gemini API, Grok API.
What makers say
Makers on using it for LLM API, from Product Hunt and Starter Story interviews, each linked to the source. Products with a page of their own and fuller notes first.
Powers all agent conversations on Konfide. Fast, cost-effective, handles unlimited concurrent chats. Every user message goes through Gemini. Chose it for speed and quality at scale.
Gemini gives us another strong option for routing complex tasks. Fast response times and competitive pricing mean we can offer our customers more flexibility in how their automations run.
Saturn uses Gemini for structured data extraction from Japanese government filings (EDINET, gBizINFO). Best cost-performance ratio for Japanese language processing at scale.
Grok pairs real-time knowledge with strong reasoning in a way that makes it genuinely useful for live, in-the-moment automations. We chose it because it doesn't just know a lot, it knows what's happening right now.
Fast models for real-time reasoning Grok adds fast, context-aware reasoning that helps expand the range of workflows our agents can handle.
very helpful for enabling us to make the best router possible!
Loved and watch-outs
Themes that recur in makers' words and Hacker News comments, each linked to what it summarises.
