GPT-5.3 Codex Spark
Coding-optimized GPT model for repository edits, reviews, and agentic software work
Context
128,000
Max output
128,000
Input / 1M
$1.75
Output / 1M
$14.00
Providers
3
01Profile
Profile
Released
2026-02-05
Last updated
2026-03-04
Knowledge cutoff
2025-08-31
Weights
Closed
02Capabilities
Capabilities
Input
text · image · pdf
Output
text
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Attachments
Yes
Cache read
$0.17
Cache write
Not listed
03Pricing
Pricing across 2 providers
Per 1M tokens, USD. Sorted by input price. First-party row highlighted.
04History
Change history
9+ recent events since 2026-02-05
2026-08-24Removedcloudflare-ai-gatewayofferingremoved→ new
2026-08-14Addedcloudflare-ai-gatewayoffering→ new
2026-04-02Addedpoeoffering→ new
2026-03-14Removedopenaiofferingremoved→ new
2026-03-14Removedopencodeofferingremoved→ new
2026-03-13Addedopenaioffering→ new
2026-03-13Addedopencodeoffering→ new
2026-03-05Addedopencodeoffering→ new
2026-02-12Addedopenaioffering→ new