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OpenAI

gpt-5.3-codex-30%

gpt-5.3-codex

Codex variant tuned for agentic software engineering and long coding sessions.

CONTEXT
272K
RELEASED
Feb 2026
INPUT /MTOK
$1.225$1.75
OUTPUT /MTOK
$9.8$14

Connect

Call gpt-5.3-codex through the gateway. Native is the model's own wire protocol; Compatible endpoints are translated by the gateway.

POST /v1/responsesNative
curl https://apiarc.ai/v1/responses \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $APIARC_API_KEY" \
  -d '{
    "model": "gpt-5.3-codex",
    "input": "Hello"
  }'

Providers

Routes offering gpt-5.3-codex through the gateway, with list pricing.

ProviderInput /MOutput /MCache read /MLatency (30d avg)
OpenAIOpenAI-30%
$1.225$1.75$9.8$14$0.1225$0.175