GPT-5.3 Codex
As of Oct 4, 2026, the cheapest GPT-5.3 Codex API price is $1.4 per 1M input tokens (Ofox) and $11.2 per 1M output tokens (Ofox). GPT-5.3 Codex is offered by 29 providers in the gpt-codex family, reasoning enabled. OpenAI's own rate is $14 per 1M output tokens. It is also included in 2 flat-rate subscription plans, GitHub Copilot Pro from $10/mo.
API pricing by provider
Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge. How prices are ranked.
| Provider | 1M input | 1M output | 1M cache read | 1M cache write | Context | Changed |
|---|---|---|---|---|---|---|
| Ofox | Cheapest$1.4 | Cheapest$11.2 | $0.144 | — | 400k | 16d agoout −20% |
| Poe | $1.6 | $13 | $0.16 | — | 400k | — |
| Abacus | $1.75 | $14 | $0.18 | — | 400k | — |
| AIHubMix | $1.75 | $14 | $0.175 | — | 400k | — |
| Azure | $1.75 | $14 | $0.175 | — | 400k | — |
| Azure Cognitive Services | $1.75 | $14 | $0.175 | — | 400k | — |
| DigitalOcean | $1.75 | $14 | $0.175 | — | 400k | — |
| Eden AI | $1.75 | $14 | $0.175 | — | 400k | — |
| FastRouter | $1.75 | $14 | — | — | 400k | — |
| FreeModel | $1.75 | $14 | $0.175 | $1.75 | 400k | — |
| FrogBot | $1.75 | $14 | $0.175 | — | 400k | — |
| Impossibl | $1.75 | $14 | $0.175 | — | 400k | — |
| Kilo Gateway | $1.75 | $14 | $0.175 | — | 400k | — |
| DevPass (LLM Gateway) | $1.75 | $14 | $0.175 | — | 400k | — |
| LLM Gateway | $1.75 | $14 | $0.175 | — | 400k | — |
| LLM Gateway | $1.75 | $14 | $0.175 | — | 400k | — |
| NanoGPT | $1.75 | $14 | $0.175 | — | 400k | — |
| Neon | $1.75 | $14 | $0.175 | — | 400k | — |
| OpenAI | $1.75 | $14 | $0.175 | — | 400k | — |
| OpenCode Zen | $1.75 | $14 | $0.175 | — | 400k | — |
| OpenRouter | $1.75 | $14 | $0.175 | — | 400k | — |
| Opper | $1.75 | $14 | $0.175 | — | 400k | — |
| OrcaRouter | $1.75 | $14 | $0.175 | — | 400k | — |
| Pioneer | $1.75 | $14 | $0.175 | $1.75 | 400k | — |
| Requesty | $1.75 | $14 | $0.175 | — | 400k | — |
| Vercel AI Gateway | $1.75 | $14 | $0.175 | — | 400k | — |
| Vivgrid | $1.75 | $14 | $0.175 | — | 400k | — |
| ZenMux | $1.75 | $14 | — | — | 400k | — |
| Venice AI | $2.19 | $17.5 | $0.219 | — | 400k | — |
Subscription plans (not per-token)
Billed per month, not per token — never counted as the cheapest offer.
| Provider | 1M input | 1M output | Context |
|---|---|---|---|
| GitHub Copilotplan | $1.75 | $14 | 400k |
GPT-5.3 Codex pricing FAQ
What is the cheapest GPT-5.3 Codex API?
As of Oct 4, 2026, Ofox has the lowest GPT-5.3 Codex output price at $11.2 per 1M tokens, and Ofox has the lowest input price at $1.4 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.
How much does GPT-5.3 Codex cost on OpenAI?
OpenAI charges $1.75 per 1M input tokens and $14 per 1M output tokens for GPT-5.3 Codex.
How many providers offer GPT-5.3 Codex?
29 providers list GPT-5.3 Codex on Sovyron; 29 of them sell it at a metered per-token price.
Is GPT-5.3 Codex free?
No provider in the Sovyron catalog lists a free tier for GPT-5.3 Codex.
Is GPT-5.3 Codex included in a subscription plan?
Yes. 2 flat-rate plan(s) include it; the cheapest is GitHub Copilot Pro at $10/month.
What is the context window of GPT-5.3 Codex?
GPT-5.3 Codex supports a 400k-token context window and up to 128k output tokens.