OpenAI: GPT-5.3 Codex Spark
Coding-optimized GPT model for repository edits, reviews, and agentic software work
Cheapest input
$0
$/MTok · models.dev
Cheapest output
$0
$/MTok
Context
128K
tokens
Sources
1
3 listings
Sources
Same model, different sources. Our first-party rate is listed first, then router and aggregator rows stay separate so you can see the spread instead of a single blended number. Showing free/$0 listings. 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
Run this model in a real workspace
Launch agents from the project they work in, use remote management to reach another machine, and see this model's sessions and token usage in your own history. Free to use, runs on your device.
Data and list-price estimates may contain mistakes. Not investment advice.