llmrelay
// gpt

GPT-5

OpenAI's flagship. Sharper reasoning, higher price.

Not currently callable on llmrelay

Our upstream does not serve gpt-5, so calls fail rather than bill. The rates below are the official list price and what our 50% tier would charge, kept here for reference. For work you can run today, GPT-6 Astra is live at $5/M input.

Official list
llmrelay
Input / M tokens
$5.00
$2.50
Output / M tokens
$20.00
$10.00
Context window
—
400,000 tokens
Max output
—
16,384 tokens

What it costs you per month

Real-world budget scenarios. Numbers are simple sums — official list price vs llmrelay's 50% off tier.

Usage scenario
Official
llmrelay
Light coding (1M in / 200K out per month)
$9.00
$4.50save $4.50
Heavy Cursor / Cline user (50M in / 5M out per month)
$350.00
$175.00save $175.00
Production RAG (500M in / 20M out per month)
$2900.00
$1450.00save $1450.00

What it's good at

Best for

Run GPT-6 Astra instead

GPT-5 is not callable on llmrelay today, so we are not going to sell you an API key for it. GPT-6 Astra is live at $5/M input, also 50% off list.

View GPT-6 Astra →

Compare GPT-5 against the alternatives

The comparisons this model appears in, the models nearest it on price, and the full rate card.