Head-to-head
Compare direct OpenAI billing against self-hosted LiteLLM proxy infrastructure plus provider costs.
TL;DR
OpenAI API is metered first-party access. LiteLLM is OSS infrastructure you host to route providers. unlimitedcodex is managed GPT-5.5 and Codex access with flat pricing.
At a glance
| Dimension | OpenAI API | LiteLLM |
|---|---|---|
| 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. | Open-source free self-host with enterprise support and SLA as custom quote. |
| Starting price | Usage-only per-token pricing with model-specific rates. | Self-host infrastructure cost only, typically tens to hundreds per month depending on scale. |
| Token limits | Per-token metering | Per-token or credit-based |
| Best for | Teams committed to OpenAI models and needing latest capabilities | Platform teams giving LLM access to many internal developers and projects |
Third option
OpenAI API and LiteLLM 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 metered first-party access. LiteLLM is OSS infrastructure you host to route providers. unlimitedcodex is managed GPT-5.5 and Codex access with flat pricing.
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.
LiteLLM is best when platform teams giving llm access to many internal developers and projects.
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