← Back to model catalog
OpenAI
GPT-5.3 Codex
gpt-5.3-codex
Guru+flagship
GPT-5.3 Codex is a flagship model in the Majestix lineup built for coding, agentic, debugging workloads, with 400K context and $2.10 / $14.70 per 1M tokens.
Context Window
400K
Max Output
32K
Pricing
$2.10 input / $14.70 output per 1M tokens
What this model is good at
CodingAgenticDebuggingTool Use
Benchmarks and operating signals
| Signal | Value | Note |
|---|---|---|
| Context Window | 400K | platform limit |
| Max Output | 32K | platform limit |
| Output Price | $14.70 / 1M | Majestix pricing |
Quick guidance
Use GPT-5.3 Codex when your workload lines up with coding and agentic and you want a clear price-to-capability tradeoff inside Majestix.
This card intentionally focuses on platform context: pricing, limits, and where the model already appears in swarm templates. It is not a self-hosting guide or a vendor deployment manual.
If you want the narrative version, the paired blog intro is the fastest way to explain this model to customers, internal operators, or community readers.