Seedance 2.0 API is now live
OpenAI
GPT-5.3 Codex
GPT-5.3 Codex is a premium OpenAI profile aimed at deep reasoning, long-context synthesis, and higher-stakes workflows where answer quality matters more than raw throughput.
Model ID: gpt-5.3-codex
Text
Image
256K tokens
Premium latency
Pricing Snapshot
Input
$0.7875
APIXO price · per 1M tokens
Official price: $1.75
55% off
Output
$6.3
APIXO price · per 1M tokens
Official price: $14
55% off
Released
Mar 14, 2026
Context Window
256K tokens
Latency Tier
Premium
Max Output
72K tokens
Model ID
gpt-5.3-codex
Reasoning profile
Frontier
Complete pricing
Official provider pricing is shown alongside the APIXO route price for each token tier.
| Type | Official ($/1M) | APIXO ($/1M) | Discount |
|---|---|---|---|
| Input | $1.75 | $0.7875 | 55% off |
| Output | $14 | $6.3 | 55% off |
| Cache Write | $0.17 | $0.0765 | 55% off |
| Cache Read | $0 | $0 | - |
Best fit use cases
Advanced coding copilots
Research agents
Complex tool workflows
Strengths
Sharper multi-step reasoning
Strong multi-step planning
Stronger instruction precision