GPT-4o Mini
Chat model by OpenAI.
Fast and lightweight multimodal model designed for high-volume tasks, offering 128K context window at low inference costs.
This model is deprecated
GPT-4o Mini has been deprecated. It is still served on nRouter and can still be called.
Caller Notice: To help identify integrations still relying on this model, all API responses now include x-nr-model-deprecated: true and Warning: 299 - "Model deprecated" headers.
Specifications
Context window, ranked against other chat models
Proportional scale: 0 to 1.05M tokens. Not ranked, no published context window: qwen-plus-2025-09-11, voxtral-small-24b-2507, qwen3.6-plus-2026-04-02.
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chat
Benchmarks & performance rankings
Empirical intelligence benchmarks and category leaderboard placements for GPT-4o Mini.
82%
87.2%
140ms
p99: 410ms
145tok/s
SWE-bench: 26.4%
Pricing
Rates are read live
Pricing for gpt-4o-mini is fetched from the live catalogue on load, so it is never served from a cache that could outlive a repricing.
Availability
Not enough data yet
We have not collected enough health probes for this model to publish an uptime or latency figure. A percentage from a handful of samples is fabricated precision, so none is shown until the sample count supports one.
How GPT-4o Mini is billed
Billed at the provider's list price, with no per-token markup.
- Exact list price
- Tokens settle at the published rate of the model that served your call.
- Cache discounts passed through
- Provider prompt-caching discounts reach your balance with no added fee.
- Cost on every response
- Each response carries the
x-nr-request-costheader, so you can reconcile spend per request.
More from OpenAI
Start building with gpt-4o-mini
One API key, three steps. Choose your tool to begin.
Get a key
Create API keySet your API key
export NROUTER_API_KEY="<YOUR_API_KEY>"Configure Claude Code
Choose a tool, then copy its setup from the panel.
FAQs
What is GPT-4o Mini?
Fast and lightweight multimodal model designed for high-volume tasks, offering 128K context window at low inference costs.
How much does GPT-4o Mini cost?
GPT-4o Mini is billed at the provider's list price on nRouter with no per-token markup — tokens settle at the exact upstream rate. Input and output rates are read live, so see the pricing section above for the current figures.
Does GPT-4o Mini support tool calling and structured outputs?
Yes. GPT-4o Mini supports tool calling (function calling), so it can invoke external tools and APIs during a conversation.
What inputs and outputs does GPT-4o Mini support?
GPT-4o Mini takes text and images as input and returns text as output.
How do I use GPT-4o Mini via nRouter?
Use any OpenAI-compatible client: point it at https://api.nrouter.ai/v1 with your nRouter API key and set the model to "openai/gpt-4o-mini". The quick-start panel above has a copy-paste curl command for this model.
When was GPT-4o Mini released?
GPT-4o Mini was released on July 18, 2024.
Where is the GPT-4o Mini documentation?
Start at nrouter.ai/docs. The quick-start guide (nrouter.ai/docs/getting-started/quick-start) covers API keys and your first request, and the API reference (nrouter.ai/docs/api-reference) lists every parameter.
What other text models does OpenAI have?
Other OpenAI text models on nRouter include GPT-OSS 120B 1 (nrouter.ai/models/gpt-oss-120b-1), GPT-6.1 Sol (nrouter.ai/models/gpt-6.1-sol), GPT-5.2 Pro (nrouter.ai/models/gpt-5.2-pro-2025-12-11), GPT Audio 1.5 (nrouter.ai/models/gpt-audio-1.5).