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OpenAI API

GPT-5.3-Codex-Spark on OpenAI API

GPT-5.4 · OpenAI

Serverless

Pricing

TypePrice (per 1M)
Input tokens$1.75
Output tokens$14.00

Capabilities

VisionMultimodalReasoningFunction CallingTool UseStructured OutputsCode Execution

About GPT-5.3-Codex-Spark

GPT-5.3-Codex-Spark is OpenAI's low-latency coding model optimized for real-time agentic coding on Cerebras specialized hardware. It is a smaller, faster variant of GPT-5.3-Codex with a 128K token context window and API model ID gpt-5.3-codex-spark.

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Model Specs

Released2026-02-12
Context131K
ArchitectureDecoder Only

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