OpenAI: GPT-4o-mini (2024-07-18) API Pricing
OpenAI: GPT-4o-mini (2024-07-18) costs $0.150 per 1M input tokens and $0.600 per 1M output tokens (cache reads: $0.075). Context window: 128K. Prices verified 2026-10-21 · source
Alternatives to consider
Cheapest openai model — 86% less per month
Rebuilt daily from our snapshot archive — the chart appears once a model has 5+ snapshots of history.
From our own daily snapshot archive — independent of provider announcements.
Token economics
| Token type | Price | vs base input |
|---|---|---|
| Standard input | $0.150 | — |
| Cache read | $0.075 | −50% |
| Output | $0.600 | — |
Prompt caching stores repeated context server-side: reads cost far less, but writes carry a one-time premium.
Training data ends here — newer events require retrieval or web search.
What would OpenAI: GPT-4o-mini (2024-07-18) cost you per month?
| Workload | Requests/mo | Avg tokens (in/out) | Est. monthly cost |
|---|---|---|---|
| Light chatbot | 10,000 | 800 / 400 | $3.60 |
| Coding agent | 5,000 | 8,000 / 2,000 | $12.00 |
| RAG pipeline | 30,000 | 4,000 / 500 | $27.00 |
| Doc summarizer | 2,000 | 20,000 / 1,000 | $7.20 |
Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.
About OpenAI: GPT-4o-mini (2024-07-18)
GPT-4o mini is OpenAI's newest model after [GPT-4 Omni](/models/openai/gpt-4o), supporting both text and image inputs with text outputs. As their most advanced small model, it is many multiples more affordable...
Compare OpenAI: GPT-4o-mini (2024-07-18) with
- GPT-4o-mini (2024-07-18) vs OpenAI: GPT-5.6 Terra Pro
- GPT-4o-mini (2024-07-18) vs Anthropic: Claude Fable 5
- GPT-4o-mini (2024-07-18) vs Anthropic: Claude Opus 5
- GPT-4o-mini (2024-07-18) vs OpenAI: GPT-5.6 Sol
Popular head-to-heads — see all on the comparisons index.
Frequently asked questions
How much does OpenAI: GPT-4o-mini (2024-07-18) cost?
OpenAI: GPT-4o-mini (2024-07-18) costs $0.150 per 1M input tokens and $0.600 per 1M output tokens; cached input tokens cost $0.075 per 1M. Verified 2026-10-21 — provider source.
What is the context window?
128K tokens, with up to 16K output tokens per response. That's roughly 160 pages of text in a single request.
Does it support prompt caching?
Yes — cached input is $0.075/1M, about 50% cheaper than standard input. Agents and RAG workloads with repeated context benefit most.
What's a cheaper alternative?
ScaleDown: Summarize saves about 90% on a typical workload with comparable quality.
Official resources
- OpenAI: GPT-4o-mini (2024-07-18) on OpenRouter — live endpoint, pricing source of record.
- Artificial Analysis leaderboard → — independent intelligence and performance rankings.
- OpenAI pricing → — first-party pricing and billing details.
- LMArena leaderboard → — independent human-preference rankings.
- Shred your current bill — paste a CSV and see if switching saves money.