Why are the prices converted from US dollars?

The providers in our data publish their prices in US dollars. This page converts them to pounds at £1 = US$1.3403, the Bank of England spot rate for 9 November 2026, so the figures are a guide to the sterling cost rather than an exact amount.

Will I be billed in pounds?

That depends on the provider and your account. Some bill in US dollars, in which case your bank or card issuer applies its own exchange rate and fees. Check your provider’s billing settings to see which currency you will be invoiced in.

Why might the pound figure change when the provider’s price has not?

Because the exchange rate moves. We update the rate when we recheck prices, so a pound figure can rise or fall slightly even when the US dollar list price is unchanged.

LLM API and GPU cost calculator

Estimate your monthly spend on large language model APIs and cloud GPU rental from your own token volumes or GPU hours, and compare every model side by side, in pounds sterling.

Prices last verified between 10 November 2026 and 11 November 2026 against each provider’s published price list.See every source

Estimate your AI costs

Amounts in pounds sterling, converted from each provider’s US dollar price list at the rate shown with the results.

Model

Your traffic

Requests per day

API calls, not users. An agent or chain may make several calls per user action.

Average input tokens per request

tokens

System prompt, chat history, retrieved documents and tool definitions together.

Average output tokens per request

tokens

Include reasoning tokens if the model bills them as output.

Discounts

Input read from the prompt cache

Share of input tokens billed at the cached input price.

Requests sent through a batch API

Work that can wait for an asynchronous batch job instead of an instant reply.

The starting figures are examples. Replace them with your own.

GPT-6 Astra estimate

Per month: £5,673; Average month (365 ÷ 12 days)
Per year: £68,082
Per 1,000 requests: £18.65
Per request: £0.0187

Where the money goes (prompts up to 272k input tokens)
Price	Tokens per day	Cost per day	Share
Input	10,000,000	£74.61	40%
Output	3,000,000	£111.92	60%

Sources: developers.openai.com (checked 10 November 2026)

Providers publish these prices in US dollars. Pound figures are converted at £1 = US$1.3403, the Bank of England spot rate for 9 November 2026.

Compare every model for this workload

Same requests and token counts on each model, cheapest first. Select a column heading to sort, or a model name to see its breakdown above. List prices are the standard rates for the price tier your prompt length falls in.

Model costs for your workload, sorted by per month (ascending)
							vs cheapest
Prompts up to 100,000 input tokens	Anthropic	£0.0746	£0.00746	£0.373	£0.187	£56.73	Cheapest
Prompts up to 272K input tokens	OpenAI	£0.0746	£0.00746	£0.373	£0.187	£56.73	Cheapest
	Mistral AI	£0.112	n/a	£0.448	£0.246	£74.89	1.3×
	Google (Gemini API)	£0.224	£0.0224	£1.87	£0.783	£238.29	4.2×
	Mistral AI	£0.522	£0.0522	£1.57	£0.992	£301.83	5.3×
	Google (Gemini API)	£0.56	£0.056	£2.80	£1.40	£425.51	7.5×
Prompts up to 272K input tokens	OpenAI	£0.746	£0.0373	£3.73	£1.87	£567.35	10.0×
	Anthropic	£1.49	£0.0746	£7.46	£3.73	£1,135	20.0×
	Google (Gemini API)	£1.49	£0.0746	£7.46	£3.73	£1,135	20.0×
Prompts up to 272K input tokens	OpenAI	£1.49	£0.0746	£7.46	£3.73	£1,135	20.0×
	Anthropic	£2.98	£0.149	£14.92	£7.46	£2,269	40.0×
	Anthropic	£5.97	£0.149	£29.84	£14.92	£4,539	80.0×
Prompts up to 272K input tokens	OpenAI	£7.46	£0.746	£37.31	£18.65	£5,673	100.0×

Hardware

GPU

Provider

Where a provider sells several instance sizes, the cheapest one that fits your GPU count is used.

Pricing

A reservation is paid for every hour of the term, used or not.

Number of GPUs

Rounded up to whole instances where a provider only rents fixed sizes.

Running time and output

Hours switched on per day

hours

Busy share of those hours

How much of the switched-on time the GPUs spend generating at full throughput. Real services rarely reach 100%.

Throughput per GPU (optional)

tokens/s

No verified benchmark for this GPU yet. Enter a figure you have measured to see a cost per 1M tokens.

NVIDIA H100 80GB (SXM) estimate

Per month: £29,978; 730 billed hours
Per year: £359,733
Per hour: £41.07; 8 GPUs billed
Per 1M tokens: n/a; Needs a throughput figure

Priced on AWS EC2 p5.48xlarge (US East (N. Virginia), Linux), 1 × 8 GPUs.

Sources: aws.amazon.com (checked 10 November 2026); b0.p.awsstatic.com (checked 10 November 2026)

Providers publish these prices in US dollars. Pound figures are converted at £1 = US$1.3403, the Bank of England spot rate for 9 November 2026.

Every provider for the NVIDIA H100 80GB (SXM)

Monthly cost for 8 GPUs at 24 hours a day, cheapest on demand price first. Select a provider to see its breakdown.

On demand	Spot	1-year reserved
£11,721	No self-serve price published for this option.	No self-serve price published for this option.
£17,385	No self-serve price published for this option.	No self-serve price published for this option.
£20,000	No self-serve price published for this option.	No self-serve price published for this option.
£29,978	Price not verified yet.	Price not verified yet.
£53,550	£9,896	£34,272
Price not verified yet.	Price not verified yet.	Price not verified yet.

Worked costs

By model
Each model at five standard workloads.
By GPU
Monthly rental cost across providers.
Comparisons
Models in the same tier, head to head.

Frequently asked questions

Why are the prices converted from US dollars?: The providers in our data publish their prices in US dollars. This page converts them to pounds at £1 = US$1.3403, the Bank of England spot rate for 9 November 2026, so the figures are a guide to the sterling cost rather than an exact amount.
Will I be billed in pounds?: That depends on the provider and your account. Some bill in US dollars, in which case your bank or card issuer applies its own exchange rate and fees. Check your provider’s billing settings to see which currency you will be invoiced in.
Why might the pound figure change when the provider’s price has not?: Because the exchange rate moves. We update the rate when we recheck prices, so a pound figure can rise or fall slightly even when the US dollar list price is unchanged.

Want the reasoning behind the numbers? Our guides (written in US English, with examples in US dollars) cover pre-launch estimates, prompt caching and the break-even point for running your own GPUs.