GPT-5.1-codex-mini pricing
GPT-5.1-codex-mini, Reasoning-tier from Azure OpenAI Service, costs $0.25 per 1M input tokens and $2.00 per 1M output tokens.
Input$0.25per 1M tokens
Output$2.00per 1M tokens
Context window—tokens
TierReasoningAzure OpenAI Service
Price your own workload against GPT-5.1-codex-mini in the calculator →
Specs and pricing
| Provider | Azure OpenAI Service |
| Tier | Reasoning |
| Context window | — |
| Max output | — |
| Input price | $0.25 / 1M tokens |
| Output price | $2.00 / 1M tokens |
| Cache read | $0.025 / 1M tokens |
| Modalities | text |
Note. Global Standard tier; USD per 1M tokens as published.
What it costs at realistic volumes
Assuming a 4:1 input:output token ratio, a common shape for chat and RAG-style workloads:
| Volume (4:1 in:out ratio) | Input cost | Output cost | Total / month |
|---|---|---|---|
| 1,000,000 in / 250,000 out | $0.25 | $0.50 | $0.75 |
| 10,000,000 in / 2,500,000 out | $2.50 | $5.00 | $7.50 |
| 100,000,000 in / 25,000,000 out | $25.00 | $50.00 | $75.00 |
Cheaper alternatives
Same tier (Reasoning), a different provider, and a lower blended cost at the 4:1 ratio used above:
| Model | Provider | $/1M in | $/1M out | At the 4:1 ratio |
|---|---|---|---|---|
| Trinity Large (Thinking) | Parasail | $0.22 | $0.85 | 42.3% cheaper blended |