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.

Ask your AI about this, with this page as the source:ChatGPT ↗Claude ↗Perplexity ↗

Which fits you

Choose Gemini API if
  • 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.

Choose Grok API if
  • 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

Gemini APIGrok API
Used by99 makers' products · 227 open-source projects6 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—
Downloads19.2M/wk6.5× vs npm2.3M/wk4.8× vs npm
PricingFree tier with rate limits; pay per token. · paid from Pay per tokenPay per token; image, video and voice priced per unit. · paid from Pay per token
Free tierYesNo
Open sourceNoNo

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).

$0$200$1,000$5,0001510501005001k5k
Grok APIGemini APIx: input tokens per month (million tokens), other usage scaled with it · cheapest usable plan at each point, list prices · try your own numbers
The numbers, plan by plan
Input tokens per monthGemini APIGrok 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.

On Gemini API
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.
Konfide, the makerSep 2026 ↗
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.
Logic, Inc., the makerSep 2026 ↗
Saturn uses Gemini for structured data extraction from Japanese government filings (EDINET, gBizINFO). Best cost-performance ratio for Japanese language processing at scale.
Saturn, the makerSep 2026 ↗
67 more on the Gemini API page →
On Grok API
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.
IFTTT, the makerSep 2026 ↗
Fast models for real-time reasoning Grok adds fast, context-aware reasoning that helps expand the range of workflows our agents can handle.
Agentplace.io, the makerSep 2026 ↗
very helpful for enabling us to make the best router possible!
Weave Engineering Intelligence, the makerSep 2026 ↗
2 more on the Grok API page →

Loved and watch-outs

Themes that recur in makers' words and Hacker News comments, each linked to what it summarises.

Gemini API
Most loved
  • It offers some of the best price-to-performance, with fast, cheap Flash models. PHPH 2PH 3PH 4
  • A context window of a million tokens or more handles whole codebases and long documents without extra pipelines. PHPH 2PH 3PH 4
  • Native multimodal input covers video, screenshots and audio. PHPH 2PH 3PH 4
Watch-outs
  • Getting an API key and paying is confusing, with usage tiers and Google Cloud console hoops. HNHN 2HN 3HN 4
  • Models are deprecated abruptly, some without leaving preview or having a replacement. HNHN 2HN 3HN 4
  • Pricing docs are unclear, and new models sometimes launch without listed prices. HNHN 2
On Product Hunt: 4.9★, 167 reviews · mentioned most: fast performance, multimodal capabilities, Google integration · complaints: inconsistent data, hallucinations
Grok APIOn Product Hunt: 4.7★, 18 reviews · mentioned most: creative problem-solving

Who uses each

Used by both — often one replacing the other, or each for a different part of the product

What makers pair each with

With Gemini API
OpenAI APIModel providerThe broadest model lineup — text, images, speech, embeddings — and the largest ecosystem.vs Gemini API →vs Grok API →
ClaudeModel providerCoding, long documents and agent-style tool use.vs Gemini API →vs Grok API →
GroqOpen models, hostedVery low-latency inference on open models, for real-time features.vs Gemini API →vs Grok API →
Mistral AIModel providerA European provider whose API covers chat, coding, OCR and speech models.vs Gemini API →
DeepSeekModel providerLow per-token prices on strong reasoning and coding models, with OpenAI- and Anthropic-format endpoints.vs Gemini API →
OpenRouterGateway (many providers, one API)Trying many models from many providers with one API key and one bill, without opening an account at each.
LiteLLMGateway (many providers, one API)Running your own OpenAI-compatible proxy in front of your own provider keys, with retries, routing and per-key budgets.