Head-to-head
Compare direct OpenAI per-token billing against Azure OpenAI deployments with PTU and enterprise Azure overhead.
TL;DR
OpenAI API is first-party with per-token pricing. Azure OpenAI wraps models in deployment-specific Azure contracts. unlimitedcodex offers GPT-5.5 and Codex with unlimited token consumption and 4 concurrent connections at a flat price.
At a glance
| Dimension | OpenAI API | Azure OpenAI |
|---|---|---|
| GPT-5.5 & Codex | Varies — see provider or routing layer | Varies — see provider or routing layer |
| Pricing model | Pure pay-as-you-go per token, request, or modality with batch and priority tiers. | Pay-as-you-go per token or Provisioned Throughput Units (PTUs) with Azure subscription billing. |
| Starting price | Usage-only per-token pricing with model-specific rates. | Per-token pay-as-you-go inside an Azure subscription. |
| Token limits | Per-token metering | Per-token or credit-based |
| Best for | Teams committed to OpenAI models and needing latest capabilities | Enterprises with existing Azure estates and Microsoft procurement |
Third option
OpenAI API and Azure OpenAI solve routing and governance. unlimitedcodex sells the API access package itself: GPT-5.5, Codex, and advertised OpenAI-compatible endpoints at Unlimited Weekly $19/week | Unlimited Monthly $76/month | First-month reward: $59 first Monthly payment with UNLIMITED59 when configured.
FAQ
OpenAI API is first-party with per-token pricing. Azure OpenAI wraps models in deployment-specific Azure contracts. unlimitedcodex offers GPT-5.5 and Codex with unlimited token consumption and 4 concurrent connections at a flat price.
Yes. Every unlimitedcodex package includes GPT-5.5, Codex, embeddings, and image endpoints with unlimited token consumption and 4 concurrent connections at $19/week or $76/month.
No. unlimitedcodex is an independent OpenAI-compatible API access service. Choose OpenAI API directly when you need official first-party OpenAI account features, support, or enterprise contracts.
OpenAI API is best when teams committed to openai models and needing latest capabilities.
Azure OpenAI is best when enterprises with existing azure estates and microsoft procurement.
unlimitedcodex is the independent third option when you need GPT-5.5 and Codex API access with unlimited token consumption and 4 concurrent connections at a flat price.
GPT-5.5 & Codex API access
Unlimited Weekly $19/week | Unlimited Monthly $76/month | First-month reward: $59 first Monthly payment with UNLIMITED59 when configured