All Models
GPT 5.3 Codex Spark
Coding-optimized GPT model for repository edits, reviews, and agentic software work
Available Providers (3)
| Provider | Model ID | Input Cost | Output Cost | Context | Max Output | Docs |
|---|---|---|---|---|---|---|
 Poe | openai/gpt-5.3-codex-spark | $0/MTok | $0/MTok | 128K | 16.4K | |
 OpenCode Zen | gpt-5.3-codex-spark | $1.75/MTok | $14/MTok | 128K | 128K | |
 OpenAI | gpt-5.3-codex-spark | $1.75/MTok | $14/MTok | 128K | 32K |
Capabilities
Reasoning
Tool Calling
Attachments
Open Weights
Structured Output