HASTATAgent stack guide gpt-codex-spark
GPT-5.3 Codex Spark
Coding-optimized GPT model for repository edits, reviews, and agentic software work
Fresh · fetched 2026-08-17T02:11:57.739Z · Models.dev(opens in a new tab)
Minimum context128K
Output128K
Providers4
CapabilitiesTool calling, Reasoning, Image input
Provider offers
| Providers | Input / 1M | Output / 1M | Cache read / 1M | Context / output | Updated |
|---|---|---|---|---|---|
 OpenAIgpt-5.3-codex-spark | $1.75 | $14.00 | $0.17 | 128K | 2026-02-05 |
 Cloudflare AI Gatewayopenai/gpt-5.3-codex-spark | $1.75 | $14.00 | $0.17 | 128K | 2026-02-05 |
 OpenCode Zengpt-5.3-codex-spark | $1.75 | $14.00 | $0.17 | 128K | 2026-02-12 |
 Poeopenai/gpt-5.3-codex-spark | $0.00 | $0.00 | Unavailable | 128K | 2026-03-04 |
Lowest reported provider price in USD per 1M tokens; unavailable is not free. Provider documentation remains authoritative. Catalogue presence is not an uptime, security, or quality endorsement.
Source metadata and limitations
Capabilities are source-reported. Tool calling does not prove quality in a particular harness. Prices and limits can change.
Modalities: text, image, pdf → text