Claude −49% · GPT −80% vs official pricing

One key. Every frontier model. Half the price — or better.

Point your existing OpenAI or Anthropic SDK at InferKey and keep shipping. Claude Fable, Opus, Sonnet, GPT-5.6 and more — one prepaid balance, no subscription, transparent per-token pricing.

Get your key
See pricing
main.py
# your existing code, two lines changed
client = OpenAI(
    api_key="YOUR_INFERKEY_KEY",
    base_url="https://inferkey.dev/openai/v1",
)

r = client.chat.completions.create(
    model="claude-sonnet-5",  # or gpt-5.6, claude-fable-5, ...
    messages=[{"role": "user", "content": "ship it"}],
)

Why InferKey

Built for developers who ship

Drop-in compatible, radically cheaper, and honest about how it works.

Why InferKey

Drop-in compatible, radically cheaper, and honest about how it works.

Claude Fable 5, Opus 4.8, Sonnet 5, GPT-5.5, GPT-5.6 and more — behind a single key and two base URLs.

claude-fable-5claude-opus-4-8claude-sonnet-5claude-haiku-4-5gpt-5.5gpt-5.6-solgpt-5.6-terragpt-5.6-lunagpt-5.4gpt-image-2

The numbers

Real models, real savings

Official models served unmodified — measured, published, verifiable.

13+

frontier models behind one key

80%

maximum savings vs official pricing

100%

official model responses, unmodified

Pricing

Buy credits

Credits never expire. Pay with card or Alipay.

Buy credits
All prices in USD per 1M tokens, billed on actual token usage. Prices apply to new purchases — your rate is fixed at purchase time.
Get your key
Model pricing (per 1M tokens)
ModelInputOutputCache writeCache readOfficialSavings
claude-fable-5$5.13$25.65$6.42$0.51$10 / $50-49%
claude-haiku-4-5$0.51$2.55$0.63$0.06$1 / $5-49%
claude-opus-4-6$2.55$12.84$3.21$0.27$5 / $25-49%
claude-opus-4-7$2.55$12.84$3.21$0.27$5 / $25-49%
claude-opus-4-8$2.55$12.84$3.21$0.27$5 / $25-49%
claude-sonnet-5$1.53$7.68$1.92$0.15$3 / $15-49%
claude-sonnet-4-6$1.53$7.68$1.92$0.15$3 / $15-49%
gpt-5.4$0.51$3.00$0.06$0.06$2.5 / $15-80%
gpt-5.4-mini$0.15$0.90$0.03$0.015$0.75 / $4.5-80%
gpt-5.5$0.99$6.00$0.09$0.09$5 / $30-80%
gpt-5.6-luna$0.21$1.20$0.03$0.021$1 / $6-80%
gpt-5.6-terra$0.51$3.00$0.06$0.06$2.5 / $15-80%
gpt-5.6-sol$0.99$6.00$0.09$0.09$5 / $30-80%

All prices in USD per 1M tokens, billed on actual token usage. Prices apply to new purchases — your rate is fixed at purchase time. (2026-03-28)

Image generation (per image)
gpt-image-2 · Billed by the generated image's size tier. Quality does not affect price (low / medium / high are the same).
Size tierPrice
1K · ≤1024²$0.0177
2K · ≤2048²$0.0264
4K · >2K$0.0354

FAQ

Questions, answered

Ship with frontier models tonight

From signup to first API call in under five minutes. $10 gets you started.

Get your keySee pricing