GPT-5.3 Codex pricing
Source: litellm · updated 2026-10-28
Short answer: GPT-5.3 Codex costs $1.75 per million input tokens and $14.00 per million output tokens. That is a 3:1 blended rate of $4.81 per million tokens, ranking it #565 of 713 tracked models by input price.
Price breakdown
| Metric | USD |
|---|---|
| Input, per 1M tokens | $1.75 |
| Output, per 1M tokens | $14.00 |
| Output รท input multiple | 8.00× |
| 3:1 blended, per 1M tokens | $4.81 |
| Context window | 128,000 tokens |
What a typical workload costs
| Monthly volume | Input cost | Output cost | Total | 1M in / 250K out | $1.75 | $3.50 | $5.25 |
|---|---|---|---|---|---|---|---|
| 10M in / 2.5M out | $17.50 | $35.00 | $52.50 | ||||
| 100M in / 25M out | $175 | $350 | $525 |
Other github_copilot models
| Model | Input | Output |
|---|---|---|
| GPT-6 Luna | $0.100 | $0.500 |
| GPT-5.6 Luna | $0.200 | $1.20 |
| Mai Code 1.1 Flash | $0.200 | $1.20 |
| GPT-5 Mini | $0.250 | $2.00 |
| GPT-5.4 Mini | $0.750 | $4.50 |
Cheaper alternatives
Next cheaper option: Us Gov Anthropic Claude Sonnet 5 at $2.40 per 1M input tokens. Next step up: Claude Opus 5 at $2.50 per 1M input tokens.