o4-mini pricing
o4-mini, Reasoning-tier from OpenAI, costs $1.10 per 1M input tokens and $4.40 per 1M output tokens.
Input$1.10per 1M tokens
Output$4.40per 1M tokens
Context window200Ktokens
TierReasoningOpenAI
Specs and pricing
| Provider | OpenAI |
| Tier | Reasoning |
| Context window | 200K tokens |
| Max output | 100K tokens |
| Input price | $1.10 / 1M tokens |
| Output price | $4.40 / 1M tokens |
| Cache read | $0.275 / 1M tokens |
| Modalities | text, image |
| Released | 2025-04 |
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 | $1.10 | $1.10 | $2.20 |
| 10,000,000 in / 2,500,000 out | $11.00 | $11.00 | $22.00 |
| 100,000,000 in / 25,000,000 out | $110.00 | $110.00 | $220.00 |
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 | 80.3% cheaper blended |
| GPT-5.1-codex-mini | Azure OpenAI Service | $0.25 | $2.00 | 65.9% cheaper blended |
| QwQ 32B | Cloudflare Workers AI | $0.66 | $1.00 | 58.6% cheaper blended |
| DeepSeek-R1-Distill-Llama-70B | SambaNova | $0.70 | $1.40 | 52.3% cheaper blended |
| Kimi K2 Thinking | Novita AI | $0.60 | $2.50 | 44.3% cheaper blended |