Frontier AI · within reach
The same frontier models for up to 85% less
Pay as you go — start from $5 minimum. Call the latest GPT and Claude models through one prepaid key, OpenAI & Anthropic compatible, at a fraction of official list prices.
| Model | In | Out | Official I/O | Save |
|---|---|---|---|---|
| Claude Fable 5 | $4.53 | $22.63 | $10 / $50 | −55% |
| Claude Opus 4.8 | $2.27 | $11.32 | $5 / $25 | −55% |
| Claude Sonnet 4.6 | $1.37 | $6.80 | $3 / $15 | −55% |
| Claude Haiku 4.5 | $0.46 | $2.27 | $1 / $5 | −55% |
| GPT-5.5 | $0.80 | $4.76 | $5 / $30 | −84% |
| GPT-5.4 | $0.40 | $2.39 | $2.5 / $15 | −84% |
Fixed rates — what you see is what you pay. Official I/O is the equivalent model's published list price. See full pricing →
Official API prices assume a budget you don't have yet. FrugalDev routes the exact same frontier models for up to 85% less — so your tokens go much further and your runway lasts far longer.
Up to 85%
off published list prices
$0
subscriptions, seats, or minimums
1 key
for every model on the network
Features
Everything you need to call AI in production
FrugalDev handles billing, routing, and limits so you can focus on building.
One key, every model
Reach OpenAI, Anthropic, Google, Meta and more through a single OpenAI- and Anthropic-compatible endpoint. Switch models by changing one string.
Prepaid, no subscriptions
Top up a balance and spend it across any model. No monthly minimums, no seat fees, no credits that quietly expire.
Live usage tracking
Watch spend update in real time from your dashboard. Know exactly where every fraction of a cent goes.
Hard spend limits
Every key carries a built-in ceiling. A runaway loop can never spend more than you have loaded.
Instant provisioning
Your API key is minted the moment your first top-up clears. Copy it and ship in under a minute.
Drop-in compatible
Point your existing SDK at our base URL. If your code already talks to OpenAI, it already talks to us.
Full model pricing, no surprises
Fixed per-token rates that never fluctuate with network load. Every price already includes your savings vs. the official API.
Text & reasoning models
USD / 1M tokens| Model | Input | Output | Cache R | Cache W | Official I/O | Save |
|---|---|---|---|---|---|---|
| Claude Fable 5 | $4.53 | $22.63 | $0.46 | $5.67 | $10 / $50 | −55% |
| Claude Opus 4.8 | $2.27 | $11.32 | $0.23 | $2.83 | $5 / $25 | −55% |
| Claude Opus 4.7 | $2.27 | $11.32 | $0.23 | $2.83 | $5 / $25 | −55% |
| Claude Opus 4.6 | $2.27 | $11.32 | $0.23 | $2.83 | $5 / $25 | −55% |
| Claude Sonnet 4.6 | $1.37 | $6.80 | $0.13 | $1.70 | $3 / $15 | −55% |
| Claude Haiku 4.5 | $0.46 | $2.27 | $0.046 | $0.57 | $1 / $5 | −55% |
| GPT-5.5 | $0.80 | $4.76 | $0.080 | $0.080 | $5 / $30 | −84% |
| GPT-5.4 | $0.40 | $2.39 | $0.040 | $0.040 | $2.5 / $15 | −84% |
| GPT-5.4 Mini | $0.12 | $0.72 | $0.012 | $0.012 | $0.75 / $4.5 | −84% |
Image generation
USD / image1K tier
$0.0187
$0.053
−65%2K tier
$0.0280
$0.079
−65%4K tier
$0.0373
$0.106
−65%gpt-image-2, billed per image by output-size tier. Strike-through is OpenAI's published per-image price; you pay roughly 65% less at every tier.
Save = discount vs. official provider list pricing. Cache R / Cache W are cached-read and cache-write rates.
Earn more
Every top-up earns you bonus credit
Deposit above these tiers and we'll add bonus rollover credit to your account — applied automatically on your next top-up.
Starter
Perfect for testing the waters
as rollover credit on your next top-up
Builder
The most popular choice
as rollover credit on your next top-up
Scale
For serious workloads
as rollover credit on your next top-up
What developers say
Teams saving 80%+ on AI inference with one prepaid key.
“FrugalDev cut our AI inference bill by 80%. We switched from direct OpenAI billing and haven't looked back. Same models, same performance, fraction of the cost.”
Marcus Chen
CTO, BuildShip
“One key for Claude and GPT is a game-changer. No more managing separate billing for each provider. The prepaid model means no surprise bills at the end of the month.”
Sarah Park
Lead Engineer, Relay.dev
“We were skeptical about going through a reseller, but the API is identical — drop-in compatible with our existing OpenAI SDK. Took 30 seconds to switch. Saving $2K/month.”
Alex Rivera
Founder, Codeflow AI
FAQ
Frequently asked questions
Everything you might want to know before loading your first balance.
What is FrugalDev?
FrugalDev is a prepaid gateway to every major AI model. You load credit, get one API key that works with both OpenAI and Anthropic SDKs, and call any model on the network — billing and routing are handled for you.
How can prices be up to 85% lower?
We aggregate demand across many developers and route requests through optimized capacity, then pass the savings on to you. The models are the same frontier versions — you just pay a fraction of the official per-token list price.
Do I need a subscription?
No. FrugalDev is entirely prepaid. You add credit when you want it and draw it down as you build. There are no monthly fees, seat charges, or minimums.
Is it really OpenAI- and Anthropic-compatible?
Yes. Point your existing OpenAI or Anthropic SDK at our base URL and pass your FrugalDev key. Change the model string to reach any provider on the network — no code changes needed.
What stops a bug from draining my balance?
Every key has a hard spend limit equal to the credit you have loaded. Once it is exhausted, requests are declined — a runaway loop can never bill you for more than your balance.
Does my credit expire?
No. Prepaid credit stays on your account until you use it. Top up once and spend it across any model whenever you need to.
How do payments work?
Pay with USDC stablecoin directly from your embedded wallet. Buy USDC with a credit card, deposit to the platform, and your balance updates instantly.
Still have questions? Contact us
Stop overpaying for AI access
Create an account, load credit, and your key is ready in under a minute.