OpenCode Zen

GPT-5.3 Codex Spark

Name: GPT-5.3 Codex Spark
Brand: OpenCode Zen

Canonical ID: opencode/gpt-5.3-codex-spark

More OpenCode Zen models More gpt-5.3-codex-spark family models

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

Reasoning: Yes Tool use: Yes

Overview

text

Provider: OpenCode Zen
Family: gpt-5.3-codex-spark
Release date: 2026-02-12
Last updated: 2026-02-12
Input modalities: text
Output modalities: text

Pricing and Limits

Token pricing

Input: $1.75/1M
Output: $14/1M
Cached input: N/A

Context and output

Context window: 128,000
Max output tokens: 128,000
Qualified ID: opencode/gpt-5.3-codex-spark

Model Summary

GPT-5.3 Codex Spark is a model listing in the OpenCode Zen provider catalog. It is categorized under the gpt-5.3-codex-spark family.

The model supports text modalities across input/output paths. Reported context capacity is 128,000. Pricing is listed at $1.75/1M input and $14/1M output.

Same Family: gpt-5.3-codex-spark

Comparable models in the same family across providers.

Browse family

Model	Provider	Context	Input	Output	Flags
GPT-5.3 Codex Spark openai/gpt-5.3-codex-spark	OpenAI	128,000	$1.75/1M	$14/1M	Reasoning Tools
GPT-5.3-Codex-Spark poe/openai/gpt-5.3-codex-spark	Poe	128,000	$0/1M	$0/1M	Reasoning Tools

GPT-5.3 Codex Spark

Overview

Pricing and Limits

Token pricing

Context and output

Model Summary

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