5 saving routes · zero code changes

Stop burning money
on LLM APIs

A transparent proxy that sits between your AI agents and the providers. Semantic cache, context pruning, prompt compression, model routing, and thinking budget optimization — applied automatically.

See how it works
0%
avg tokens saved
0 line
to integrate
<0ms
added latency
How it works

Five routes.
One proxy endpoint.

ROUTE A
Semantic Cache
Stores LLM responses and returns cached answers for semantically similar questions — even if the wording differs.
↓ up to 100% cost on repeated queries
ROUTE B
Prompt Compression
LLMLingua 2 compresses verbose prompts by up to 50% before sending, reducing input token cost immediately.
↓ up to 50% on input tokens
ROUTE C
Model Router
Analyses each request and routes simple tasks to cheaper models (gpt-4o-mini, Gemini Flash) in under 1ms.
↓ up to 90% per routed request
ROUTE D
Context Pruning
Summarises old conversation turns when context exceeds 8K tokens, preventing runaway costs in long agent threads.
↓ up to 60% on long conversations
ROUTE E
Thinking Budget
Caps reasoning tokens on thinking models (Claude, o-series, Gemini 2.5/3) based on task complexity. Simple queries get capped budgets — complex tasks get full reasoning.
↓ up to 80% on thinking tokens
Savings calculator

See how much you'd save.

Paste a prompt or upload your OpenAI usage export — we'll show your ROI.

Current monthly spend
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With PromptThin
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You save per month
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ROI on Pro plan
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Semantic cache
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Prompt compression
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Model routing
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Thinking budget
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Context pruning
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PromptThin Pro
−$11.99/mo

7-day free trial · no charge for 7 days

Integration

Two env vars.
Everything else is automatic.

Works with OpenAI SDK, LangChain, AutoGen, CrewAI, Vercel AI SDK, and any tool with a custom base URL setting.

# .env — no code changes needed
OPENAI_BASE_URL=https://promptthin.tech/v1
OPENAI_API_KEY=ts_your_key_here
Pricing

Simple, honest pricing.

No per-token charges. No surprises. You keep your provider keys.

No card
20 req
to try the API
  • 20 requests to explore
  • All 5 saving routes
  • Usage dashboard
  • No credit card required
Pro
$0
for 7 days · then $4.99 first month
7-day free trial — card required, not charged.
Cancel anytime. Then $4.99, then $11.99/month.
  • 10,000 requests / month
  • All 5 saving routes
  • Own keys or managed keys
  • Priority support
  • Usage analytics export
Then $11.99/month · cancel anytime
Enterprise
Let's talk
custom pricing
Volume discounts, SLA guarantees, managed keys, custom domain, and dedicated support — tailored to your scale.