GPT-5.3 Codex Spark

Price at real agent usageEstimate at list prices

What 1M tokens cost at the reference list price when they split into input, output and cache the way Tokscale users' agents used them. It is not what anyone paid.

At this model's mix

$0.39

Est. per 1M tokens
93% cache reads

At the community mix

$0.36

Est. per 1M tokens
93% cache reads

3:1 input/output blend

$4.81

Per 1M tokens at list prices
No cache

Cache reads were 93% of GPT-5.3 Codex Spark tokens across all time and 93% of all tokens. The 3:1 blend, (3 × input + output) ÷ 4, is the usual comparison and ignores cache.

Assumptions

• OpenAI list prices per 1M tokens: input $1.75, output $14, cache read $0.17.
• This model's mix is its own input, output, cache and reasoning tokens across all time.
• The community mix is the tokens of every identified model across all time.
• This is an estimate at list prices, not what anyone paid.
• Reasoning tokens are priced as output.
• Long-context tiers, batch pricing and discounts are not applied.
• Token mixes come from public Tokscale submissions. Hidden accounts are excluded.
• No cache-write price is listed, so cache writes are priced as input.

List prices by provider