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OpenAI
openai.com › api › pricing
Pricing | OpenAI
1For gpt-4o-mini and gpt-4.1-mini with the web search non-preview tool, search content tokens are charged as a fixed block of 8,000 input tokens per call.
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LLMPriceCheck
llmpricecheck.com › openai › gpt-4o-mini
GPT-4o mini (OpenAI) Pricing Calculator - Costs, Quality & Free Trial | LLM Price Check
OpenAI introduces GPT-4o mini, our most cost-efficient model, scoring 82% on MMLU and outperforming GPT-41. Priced at 15 cents per million input tokens and 60 cents per million output tokens, it’s over 60% cheaper than GPT-3.5 Turbo.
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OpenAI
platform.openai.com › docs › pricing
Pricing | OpenAI API
[1] For gpt-4o-mini and gpt-4.1-mini with the web search non-preview tool, search content tokens are charged as a fixed block of 8,000 input tokens per call. Build, deploy, and optimize production-grade agents with Agent Builder, ChatKit, and Evals.
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Microsoft Azure
azure.microsoft.com › en-us › pricing › details › cognitive-services › openai-service
Azure OpenAI Service - Pricing | Microsoft Azure
If your assistant calls Code Interpreter simultaneously in two different threads, this would create two Code Interpreter sessions (2 * $-). Each session is active by default for one hour, which means that the price is for up to one hour of giving instructions to Code Interpreter in the same thread. Featured in the Realtime API, the GPT-4o-Realtime-Preview supports multilingual speech-to-speech capabilities. Optimized for real-time, low-latency conversations, it enables natural interactions with minimal delay, ideal for chatbots and conversational AI.
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Live Chat AI
livechatai.com › gpt-4o-mini-pricing-calculator
GPT-4o mini Pricing Calculator | Free, Fast & No Sign-Up
Use this free GPT‑4o mini Cost Calculator to estimate your OpenAI API costs + Includes a full guide to pricing, use cases, and comparisons.
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Helicone
helicone.ai › llm-cost › provider › openai › model › gpt-4o-mini-2024-07-18
OpenAI gpt-4o-mini-2024-07-18 Pricing Calculator | API Cost Estimation
Explore AI costs with our comprehensive OpenAI gpt-4o-mini-2024-07-18 Pricing Calculator. Compare prices for 300+ models across 10+ providers, get accurate API pricing, token costs, and budget estimations.
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TypingMind
custom.typingmind.com › tools › estimate-llm-usage-costs › gpt-4o-mini
OpenAI gpt-4o-mini API Pricing Calculator
Estimate how much you will spend on OpenAI gpt-4o-mini API to keep your budget in check.
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OpenAI
openai.com › index › gpt-4o-mini-advancing-cost-efficient-intelligence
GPT-4o mini: advancing cost-efficient intelligence | OpenAI
It is priced at 15 cents per million input tokens and 60 cents per million output tokens, an order of magnitude more affordable than previous frontier models and more than 60% cheaper than GPT‑3.5 Turbo.
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Reddit
reddit.com › r/openai › gpt-4o mini vision pricing is odd
r/OpenAI on Reddit: GPT-4o mini vision pricing is odd
July 20, 2024 -

Sorry if someone's posted this before but I couldn't see anything.

I find it a bit strange that OpenAI have made their GPT-4o mini functionally the same as the non-mini model for vision, by making each "image tile" more tokens in the mini vs the original 4o model.

https://openai.com/api/pricing/

GPT-4o:
150 x 150px image = 255 tokens (155 + 85 base tokens)
255 tokens = US$0.001275

GPT-4o mini:
150 x 150px image = 8500 tokens (5667 + 2833 base tokens)
8500 tokens = US$0.001275

I had a bit of a fun project in mind which would compare images, so I was super excited about a really cheap model (especially with their batch 50% discount) but it's a bit dissapointing that the discount doesn't carry over to images.

In contrast, Anthropic just use the formula `tokens = (width px * height px)/750` and charge you the corresponding model's rate for the tokens, and for now Haiku is nearly 10x cheaper per image than 4o mini.

Note:
I did test that this isn't an error on their page, I compared two small images and got the following response. CompletionUsage(completion_tokens=13, prompt_tokens=17128, total_tokens=17141)

Edit: Seems like it's official, there's a tweet from OpenAI acknowledging it https://x.com/romainhuet/status/1814054938986885550?t=AMFK4svMvCluYqAXUqRDMQ&s=19

Find elsewhere
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Finetunedb
finetunedb.com › blog › how-much-does-it-cost-to-finetune-gpt-4o-mini
How Much Does It Cost to Fine-Tune GPT-4o mini? | FinetuneDB
When considering the cost of fine-tuning GPT-4o mini, it’s important to factor in not just the training costs but also the inference costs. After fine-tuning, developers often ask whether there are additional charges for using the fine-tuned model. The answer is yes.
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Helicone
helicone.ai › llm-cost › provider › azure › model › gpt-4o-mini
Azure gpt-4o-mini Pricing Calculator | API Cost Estimation
Explore AI costs with our comprehensive Azure gpt-4o-mini Pricing Calculator. Compare prices for 300+ models across 10+ providers, get accurate API pricing, token costs, and budget estimations.
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Api
api.chat › models › chatgpt-4o-mini › price
OpenAI ChatGPT 4o - mini Price: $0.15/1M In, $0.60/1M Out
OpenAI ChatGPT 4o - mini
ChatGPT 4o - mini by OpenAI is a multimodal AI model for chat, writing, and understanding images or audio.
Price   US$0.15
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LLM Stats
llm-stats.com › home › models › gpt-4o mini
GPT-4o mini: Pricing, Context Window, Benchmarks, and More
July 18, 2024 - With a context window of 128K tokens and support for text and vision, it offers low-cost, real-time applications such as customer support chatbots. Priced at 15 cents per million input tokens and 60 cents per million output tokens, it is ...
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Artificial Analysis
artificialanalysis.ai › models › gpt-4o-mini
GPT-4o mini - Intelligence, Performance & Price Analysis | Artificial Analysis
Analysis of OpenAI's GPT-4o mini and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.
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OpenAI
platform.openai.com › docs › models › compare
Compare models | OpenAI API
GPT-4o mini · Fast, affordable small model for focused tasks · Learn morePlayground · Intelligence · Speed · Input · Output · Reasoning tokens · Pricing · Per 1M tokens · Input · $0.15 · Cached Input · $0.08 · Output · $0.60 · ...
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ChatGPT
chatgpt.com › pricing
ChatGPT Plans | Free, Plus, Pro, Business and Enterprise
Flexible**Plan: Enterprise, Feature: GPT-5 thinking mini, Flexible** Plan: Free, Feature: GPT-4o, No · StandardPlan: Plus, Feature: GPT-4o, Standard · Unlimited*Plan: Pro, Feature: GPT-4o, Unlimited* Unlimited*Plan: Business, Feature: GPT-4o, Unlimited* Unlimited*Plan: Enterprise, Feature: GPT-4o, Unlimited* Plan: Free, Feature: GPT-4.1, No ·
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Creole Studios
creolestudios.com › home › gpt-5 vs gpt-4o api pricing: the complete cost breakdown
GPT-5 vs GPT-4o API Pricing: 2025 Cost Guide
September 23, 2025 - OpenAI’s August 2025 release of GPT-5 has shaken up the AI landscape — not just with performance upgrades, but with aggressive API pricing that undercuts the legacy GPT-4o model. For the first time, developers get more capability for less cost, with GPT-5’s flagship, mini, nano, and “thinking” variants all coming in cheaper per token than GPT-4o equivalents.
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GPT for Work
gptforwork.com › pricing and billing › prepaid usage-based › how prepaid packs work
How prepaid packs work | GPT for Work Documentation
The OpenAI models gpt-4o-mini and o3-mini now cost $10 per 1M tokens without an API key, instead of $0.90 (gpt-4o-mini) / $9.40 (o3-mini) per 1M tokens previously. This price update doesn't affect packs purchased before this date.
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Strathweb
strathweb.com › 2024 › 10 › how-gpt-4o-mini-can-be-simultaneously-20x-cheaper-and-2x-more-expensive-than-gpt-4o
How GPT-4o-mini can be simultaneously 20x cheaper and 2x more expensive than GPT-4o | Strathweb. A free flowing tech monologue.
This would imply that 10 000 images in low resolution mode should cost us about 0.125$. However, the fixed cost for GPT-4o-mini is a surprising 2833 tokens (!). So even with cheaper price per tokens, the costs climb up quickly.
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DataCamp
datacamp.com › blog › gpt-4o-mini
What Is GPT-4o Mini? How It Works, Use Cases, API & More | DataCamp
July 21, 2024 - It costs $0.15 per million input tokens and $0.60 per million output tokens, significantly cheaper than the GPT-4o model, which is priced at $5.00 per million input tokens and $15.00 per million output tokens.