GPT-5.3 Codex Spark

openai/gpt-5.3-codex-spark · rates as of 2026-08-04 · Benchmarks · Plans · Calculator

Coding-optimized GPT model for repository edits, reviews, and agentic software work

Cheapest input

$/MTok · models.dev

Cheapest output

$/MTok

Context

128K

tokens

Offers

1 source

Offers

Same model, different listings. First-party, router, and aggregator rows stay separate so you can see the spread instead of a single blended number. Showing free/$0 offers. Hide them.

Source	Provider	Input	Output	Cache read	Context
models.devcheapestopenai/gpt-5.3-codex-spark	Poe	$0	$0	$0	128K
models.devgpt-5.3-codex-spark	OpenAI	$1.75	$14	$0.175	128K
models.devgpt-5.3-codex-spark	OpenCode Zen	$1.75	$14	$0.175	128K

Capabilities

Reasoning
Tool calling
Structured output
Attachments
In: text
In: image
In: pdf
Out: text

Knowledge cutoff: 2025-08-31Released: 2026-02-05Family: gpt-codex-spark

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