Model
GPT-5.3 Codex Spark
Coding-optimized GPT model for repository edits, reviews, and agentic software work
3 providersreleased knowledge cutoff 2025-08-31closed weights
$1.75
best input /M · OpenAI
$14
best output /M
128K
context window
32K
max output
Compare providers (sorted by listed input price)
| Provider | Input /M | Output /M | Cache read /M | Cache write /M | Context | Capabilities | Status | Updated |
|---|---|---|---|---|---|---|---|---|
| Poe openai/gpt-5.3-codex-spark | — | — | — | — | 128K | reasoningtoolsno structuredvision | Mar 4, 2026 | |
| OpenAI gpt-5.3-codex-spark | $1.75 | $14 | $0.175 | — | 128K | reasoningtoolsstructuredvision | Feb 5, 2026 | |
| Cloudflare AI Gateway openai/gpt-5.3-codex-spark | $1.75 | $14 | $0.175 | — | 128K | reasoningtoolsstructuredvision | Feb 5, 2026 |
Price badge
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Prices are per million tokens (USD). “—” means the provider does not publicly list a price for this model. Data from models.dev; verify with the provider before purchasing.