GPT-5.5 & Codex API Comparison
Unlimited GPT-5.5 and Codex API access vs Together AI's per-token hosted inference for open and frontier models.
TL;DR
Together AI bills per token on hosted models. unlimitedcodex sells packaged GPT-5.5 and Codex API access with unlimited token consumption on a flat subscription.
Verdict
Together AI wins on hosted open-model variety and fast inference for exploratory workloads. unlimitedcodex wins when you need unlimited GPT-5.5 and Codex at a flat price without per-token bills.
Real cost example
A heavy Codex and GPT-5.5 coding workload where metered alternatives vary by token volume, model mix, platform fees, and current provider pricing.
Together AI
Hosted inference pricing varies by model, token volume, and current provider rates.
Estimated monthly cost at scale
unlimitedcodex
$76/month, $59 first Monthly payment with UNLIMITED59, or $19/week for short sprints
Unlimited GPT-5.5, Codex, and advertised endpoints
Why teams switch
At a glance
| Dimension | Together AI | unlimitedcodex |
|---|---|---|
| GPT-5.5 & Codex | Hosted models, per-token billing | Unlimited tokens included |
| Pricing model | Pay-as-you-go per token on hosted models with optional dedicated endpoint commitments. | Flat Unlimited Weekly ($19) or Unlimited Monthly ($76) subscriptions with unlimited token consumption and Stripe billing. |
| Starting price | Usage-only per-token pricing with model-specific rates. | Unlimited Weekly: $19/week — advertised endpoints, unlimited tokens |
| Token limits | Per-token metering | Unlimited consumption |
| Best for | Teams experimenting with many open models on hosted infrastructure | Developers who need unlimited GPT-5.5 and Codex API access at a fixed price |
Feature comparison
Together AI
Hosted frontier and open models billed per token on Together inference endpoints.
unlimitedcodex
Independent OpenAI-compatible GPT-5.5 and Codex API access with unlimited token consumption.
Choose Together AI for open-model variety. Choose unlimitedcodex for unlimited GPT-5.5 and Codex at a flat price.
Together AI
Per-token metering with optional dedicated endpoint commitments.
unlimitedcodex
Unlimited Weekly $19/week or Unlimited Monthly $76/month — unlimited tokens included.
Choose Together AI for variable exploratory usage. Choose unlimitedcodex for predictable heavy coding workloads.
Together AI
Inference platform you integrate into your app with usage-based bills.
unlimitedcodex
Public pricing, Stripe checkout, scoped keys, and customer portal for packaged access.
Choose Together AI to host models. Choose unlimitedcodex to sell unlimited API access.
Pricing
| Item | Together AI | unlimitedcodex |
|---|---|---|
| GPT-5.5 & Codex | Per-token on hosted models | Unlimited tokens included |
| Starting price | Usage-only per-token rates | $19/week — unlimited tokens |
| Heavy usage (50M tokens/mo) | ~$200–$500+/month | $76/month flat |
| Cost predictability | Variable — scales with every request | Fixed — $19/week or $76/month |
Strengths & limitations
Migration
Difficulty: easy. Together AI exposes OpenAI-compatible endpoints. Change base URL, swap model IDs, and replace the API key. Existing OpenAI SDKs usually need minimal edits.
Generate migration codeYes. Unlimited Weekly and Unlimited Monthly packages include GPT-5.5, Codex, embeddings, and image endpoints with unlimited token consumption. Change base URL and API key — keep your existing SDK code.
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.
unlimitedcodex is a strong Together AI alternative for unlimited GPT-5.5 and Codex API access at $19/week or $76/month. Together AI bills per token on hosted models. unlimitedcodex sells packaged GPT-5.5 and Codex API access with unlimited token consumption on a flat subscription.
Together AI uses pay-as-you-go per token on hosted models with optional dedicated endpoint commitments.. unlimitedcodex offers unlimited tokens on Unlimited Weekly at $19/week and Unlimited Monthly at $76/month ($59 first month with UNLIMITED59).
Together AI remains the better fit when teams experimenting with many open models on hosted infrastructure and research and prototyping with variable token usage.
Migration difficulty is easy. Together AI exposes OpenAI-compatible endpoints. Change base URL, swap model IDs, and replace the API key. Existing OpenAI SDKs usually need minimal edits. After Stripe payment, setup delivery is expected in 10 minutes to 5 hours.
Unlimited GPT-5.5 & Codex
Unlimited Weekly $19/week | Unlimited Monthly $76/month | Monthly first month $59 with UNLIMITED59