Get LLM credits, at a discount.
One key, every model, nothing to subscribe to.
<50 ms
added latency, measured per request
$0
setup, subscription or minimum
Bids open once the book has settled its first week of fills. Buy now works today.
See what you save.
Straight relay
Your request goes to the model you named. Nothing is swapped or downgraded.
Provider’s own answer
Responses carry the provider’s model name and id, so you can check.
Prompts never stored
Only model, tokens, cost and timing are kept. Never the text. Some requests are served through a seller’s own OpenRouter key.
Liquidity Book
$0 credits available
- 65% off$254
- 60% off$10
- 55% off$483
- 50% off$3,566
- 45% off$656
- 40% off$529
- 35% off$1,635
- 30% off$3,450
- 25% off$294
- 20% off$1,244
- 15% off$106
- 10% off$1,084
Recent buys
last 20
Every model, one key, below what the lab charges.
428 models on the catalogue. Seller pricing at today's best ask, 65% off. Before the 5% platform fee. Paid in USDG on Robinhood Chain.
Claude Fable 5.1
anthropic/claude-fable-5.1
$50.0$17.5−65%GPT-6 Astra
openai/gpt-6-astra
$50.0$17.5−65%Claude Opus 5
anthropic/claude-opus-5
$25.0$8.75−65%Gemini 3.8 Flash
google/gemini-3.8-flash
$3.75$1.31−65%Grok 4.6
x-ai/grok-4.6
$6.00$2.10−65%Claude Sonnet 5
anthropic/claude-sonnet-5
$10.0$3.50−65%DeepSeek V4 Pro
deepseek/deepseek-v4-pro-0813
$3.15$1.10−65%Kimi K3
moonshotai/kimi-k3
$15.0$5.25−65%
Analytics, the way you’re used to.
Spend by day, by model, and the milliseconds Colossus added to each call, measured on your own requests.
Spent
$40.27
Requests
1.5k
Tokens
3.6M
Latency
31 ms
p95 47 ms
Spend by day
sample accountModels
- 705 reqClaude Fable 5.1$18.52
- 414 reqGpt 6 Astra$10.87
- 215 reqGemini 3.8 Flash$5.64
- 123 reqGrok 4.6$3.22
- 77 reqDeepseek V4 Flash 0731$2.01
The whole migration is two lines.
Change the base URL and the key. Model names, streaming, tool calls and vision work exactly as they do today.
import OpenAI from 'openai'const client = new OpenAI({apiKey: process.env.COLOSSUS_API_KEY,baseURL: 'https://api.colossus.network/api/v1',})const res = await client.chat.completions.create({model: 'anthropic/claude-fable-5.1',messages: [{ role: 'user', content: 'Hello' }],stream: true,})
Any OpenAI-compatible client. Model ids are OpenRouter’s, e.g. anthropic/claude-fable-5.1.
Questions, briefly.
Where does the discount come from?
From people who earned Colossus credit and use less than they earn. They list it at a price they choose, and you buy it. Colossus adds a 5% platform fee to the discounted seller subtotal. You pay in USDG from your wallet; gas on Robinhood Chain is the only extra.
Am I getting the real model?
Yes. Colossus is a relay: your request goes to the model you named, unchanged, and the response comes back with the provider’s own model name and id on it. Nothing is substituted or downgraded.
Do you store my prompts?
No. The gateway keeps billing metadata only: the model, the token counts, the cost and the timing of each request. Prompts and responses pass through and are not written anywhere.
Whose key serves my requests?
Colossus’s own OpenRouter key, or the key of the seller you bought from. Some sellers list an OpenRouter key with credit on it rather than credit they earned; a request served through one passes through that seller’s OpenRouter account, under whatever logging they have set there. If their key ever refuses, your request goes through Colossus’s key instead and you never see the difference.
What do I change in my code?
The base URL and the key. Model names, streaming, tool calls and vision work as they do today.
Is there a subscription or a minimum?
No. Credit is prepaid, spent per request at the provider’s token price, and yours until it is used. Buy $5 or $5,000.
What does Colossus add to each request?
Under fifty milliseconds: one key lookup before your request leaves, then a straight pass-through. Your account page shows the measured number for your own requests.
Can I get my money back?
Credit is a grant of product access and is not redeemable for cash. A purchase is one transaction on Robinhood Chain: if it reverts, nothing leaves your wallet.
The credit sold here comes from two kinds of seller: people who hold Colossus and use less than they earn, and people with an OpenRouter key they are not using. They set the price. Orders fill from the cheapest listing up. You pay the sellers’ price plus a 5% platform fee, in USDG, from your wallet. Colossus never sells credit of its own. Credit bought from a key is served through that key, so those requests pass through the seller’s OpenRouter account. How selling works.