gpt-5.3-codex

GPT 5.3 · Per Token

gpt-5.3-codexAvailable⚡Cache 50% off

Tool UseVisionJSON Mode

Context Window: 128KMax Output Tokens: 128K

Pricing

	Official Price	LemonData Price	Discount
Input	$1.75	$0.35	80%
Output	$14.00	$2.80	80%
Cache Read	$0.875	$0.175	80%

Parameters

Context Window

128K tokens

Max Output Tokens

128K tokens

Best For

Vision

Image understanding, document analysis, and visual reasoning

Cost Calculator

Monthly Input Tokens1M

Monthly Output Tokens0.5M

Estimated Monthly Cost$1.75

API Code Example

POST/v1/responses

API Format:

curl https://api.lemondata.cc/v1/responses \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-xxx" \
  -d '{
    "model": "gpt-5.3-codex",
    "input": "Hello!"
  }'

FAQ

How much does gpt-5.3-codex cost?

On LemonData, gpt-5.3-codex costs $0.3500 per 1M input tokens and $2.8000 per 1M output tokens, with model-specific platform pricing.

What is gpt-5.3-codex best for?

gpt-5.3-codex excels at Tool Use, Vision, JSON Mode. Access it through LemonData's unified API with a single API key.

How to use gpt-5.3-codex API?

Get your API key from LemonData, then call https://api.lemondata.cc/v1/responses using any compatible SDK. See the code examples above for detailed integration.

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