One API forleading LLMs.
Route leading models through one OpenAI-compatible endpoint. Change one base_url; KoRouter handles provider switching, automatic failover, and transparent pay-as-you-go pricing.
- claude-opus-5-535% off
- gpt-6.1-sol63% off
- deepseek-v4.1-flash56% off
- claude-fable-5.135% off
- claude-opus-5-535% offInputKoRouter price: $2.60
Official price: $4.00OutputKoRouter price: $13.00Official price: $20.00 - gpt-6.1-sol63% offInputKoRouter price: $0.74
Official price: $2.00OutputKoRouter price: $3.70Official price: $10.00
Change one line, power your AI coding tools.
KoRouter serves both OpenAI- and Anthropic-compatible endpoints. Change one base_url and these tools run on every model in the live catalog — no code changes, pay as you go, below official prices.
…and any other OpenAI- or Anthropic-compatible client.
# OpenAI-compatible · Codex / Cline / Aider …
export OPENAI_BASE_URL="https://korouter.ai"
export OPENAI_API_KEY="sk-********"
# Anthropic-compatible endpoint · Claude Code
export ANTHROPIC_BASE_URL="https://korouter.ai"
export ANTHROPIC_AUTH_TOKEN="sk-********"
# Models: bare ids, e.g. claude-fable-5
* Real endpoints — swap in a key from your console
Same models.Up to 63% off.
One credit balance covers every model. Token, image, and request prices come from the live billing catalog — no monthly fee, no minimum spend.
- claude-opus-5-5-35%35% OFFIn $2.60Out $13.00Cache read $0.13
- gpt-6.1-sol-63%63% OFFIn $0.74Out $3.70Cache read $0.037
- deepseek-v4.1-flash-56%56% OFFIn $0.066Out $0.264Cache read $0.00132
- claude-fable-5.1-35%35% OFFIn $6.50Out $32.50Cache read $0.1625
- gpt-6-astra-63%63% OFFIn $3.70Out $18.50Cache read $0.37
- claude-sonnet-5-5-35%35% OFFIn $1.30Out $6.50Cache read $0.065
| Model | Input | Output | Cache read | Vs official | Pricing details |
|---|---|---|---|---|---|
| claude-opus-5-5 | $0.13 | -35%35% OFF | |||
| gpt-6.1-sol | $0.037 | -63%63% OFF | |||
| deepseek-v4.1-flash | $0.00132 | -56%56% OFF | |||
| claude-fable-5.1 | $0.1625 | -35%35% OFF | |||
| gpt-6-astra | $0.37 | -63%63% OFF | |||
| claude-sonnet-5-5 | $0.065 | -35%35% OFF | |||
| See all models in the marketplace | |||||
* Prices come from the live billing catalog. Image and request models keep their native per-call units. Hover ⓘOpen a model for the full breakdown.
Frequently asked questions
Straight answers on billing, integration, and data security. If yours is missing, write to us — an engineer replies directly.
Contact supportsupport@korouter.aiPricing follows each model's billing mode. Token models are charged by input, output, and cache tokens; image and request models are charged per image or request. The live catalog shows the actual price you pay. All calls draw from one credit balance, and every charge traces back to a single request.
They're negotiated rates, and we pass the savings on to you. A discount can grow or shrink over time, but a KoRouter price is never above the provider's official price — the marketplace shows both side by side.
One API key covers every provider — no separate signups, top-ups, or SDKs to maintain. KoRouter also adds smart routing, automatic failover, unified usage analytics, and rate-limit smoothing to keep your production service steady.
Anything that speaks the OpenAI API: the official OpenAI SDKs (TypeScript, Python, and more), LangChain, Vercel AI SDK, LlamaIndex, and other mainstream frameworks work out of the box — or call the REST API directly.
Request content passes through to the provider and is never stored by us — we keep billing metadata (model, tokens, cost, timing), not conversation data. API keys are stored as a one-way hash and can be rotated or revoked at any time.
Signing up is free; calls are paid, with no starter balance. Top up to use every currently available model with no monthly fee or minimum spend.
One key. Leading models.
Connect now.
Free to sign up · no monthly fee · pay as you go with credits