OpenAI › GPT-5 Codex › Pricing
$1.25 / $10per 1M tokens in / out
Price sheetper 1M tokens
| Input | $1.25 | Abacus |
| Output | $10 | |
| Context | 400K | tokens |
Exact modelsdev provider Abacus deployment gpt-5-codex; provider contract, not a family-wide guarantee. USD per million input tokens.
In OpenAI's line-upper 1M in / out
| GPT-6 Luna Decisions | $0.10 / — | −100% |
| GPT OSS 20B | $0.018 / $0.09 | −99% |
| GPT OSS 120B | $0.03 / $0.15 | −98% |
| GPT OSS Safeguard 20B | $0.07 / $0.20 | −97% |
| GPT-6 Luna | $0.10 / $0.50 | −94% |
| GPT OSS Safeguard 120B | $0.15 / $0.60 | −92% |
| GPT-5.4 Mini (2026-03-17) | $0.75 / $4.50 | −51% |
Cheaper for the same workvs GPT-5 Codex at high
| GPT-6.1 Terra max | -42% | score +93% | $0.40 |
| Muse Spark 1.3 max | -42% | score +93% | $3.69 |
| Grok 4.7 xhigh | -13% | score +87% | $3.24 |
| MiMo v2.6 Pro thinkingOpen | -84% | score +86% | $0.13 |
| Qwen3.8 Max (0902) thinking | -13% | score +83% | $5.41 |
Pricing questions
How much does GPT-5 Codex cost?›
$1.25 per 1M input tokens and $10 per 1M output tokens.
Is GPT-5 Codex free to use?›
There is no free API tier.
What is a cheaper alternative to GPT-5 Codex?›
GPT-6.1 Terra at max effort costs -42% per task with a score +93% on .