GPT-5.3 Codex Spark pricing.
prices as of · 2 providers · 3 prices
OpenAI's GPT-5.3 Codex Spark holds 128k tokens of context, reads images as well as text and has a reasoning mode. Closed weights: only OpenAI and its licensed partners run it, so every other price below resells the same service.
GPT-5.3 Codex Spark costs $1.75 in and $14 out per million tokens from OpenAI, and no provider goes below it with a reason we can point at.
OpenAI list price
$19.25/M tokens
$1.75 in · $14 out
read · 442% above the market median
Cheapest price we can explain
$19.25
Nobody goes below OpenAI's price for a reason we can point at, so the list price is the one to beat. Every other price is below.
What it costs for your work
OpenAI list price
$1.89a month
cheapest we can explain
none
difference
no list price
A page is about 600 tokens in and 60 out, a support reply 200 in and 300 out, an email 150 in and 250 out. Nothing else is counted: no cache discount, no batch rate, no free tier.
Every provider selling GPT-5.3 Codex Spark
Four groups, decided by the price and by what the provider publishes about it. Prices are per million tokens, and the share is that row against OpenAI's price.
The maker's list price
1 priceWhat the lab that trained the model charges on its own API.
OpenAIThe price OpenAI charges for the model it trained. Every row below is measured against it.
$1.75 / $14in / out per M
1.00×of list price
Same price as the maker
1 priceThe same price the maker charges, sold by someone else.
OpenCode ZenThe same price OpenAI charges.
$1.75 / $14in / out per M
1.00×of list price
Given away with limits
1 free tiers · never rankedThese providers give GPT-5.3 Codex Spark away inside a quota of their own. A limit is not a price, so none of them counts as cheapest here or anywhere else on the site.
Poe
Frequently asked
- Who sells GPT-5.3 Codex Spark cheapest?
- No provider sells GPT-5.3 Codex Spark below OpenAI's price with a reason we can point at. 2 providers sell it at or above list, and those prices are all on this page.
- Is GPT-5.3 Codex Spark open weights?
- No. OpenAI keeps the weights, so every price on this page is OpenAI's own or a resale of it. A price below list here needs a published reason, or it is listed and never ranked.
- How much context does GPT-5.3 Codex Spark hold?
- 128,000 tokens in one call, which is about 128k, and it can call your own functions.
- How does GPT-5.3 Codex Spark compare with the rest of the market?
- At $19.25 per million tokens, OpenAI's price is 442% above the $3.55 median across the 337 text models we track.