o3 Mini
by OpenAIopenai/o3-mini
LLMCompare cannot run o3 Mini yet.No route to this model is configured on this site yet. Its prices and parameters are listed below for reference.
See the models that can be run nowo3 Mini at a glance
- Context length
- 200,000 tokens
- Maximum output
- 100,000 tokens
- Accepts
- Text, File
- Returns
- Text
- Features
- JSON outputTool callingPrompt caching
- Reasoning effort levels
- Not supported
- Released
- 31 Jan 2025
- Knowledge cutoff
- 31 October 2023
Model facts synced from the OpenRouter model list on 21 Oct 2026.
o3 Mini pricing by route
A route is the service LLMCompare calls to reach the model. o3 Mini has 1 route. Prices are in US dollars.
| Route | On LLMCompare | Inputper 1M tokens | Outputper 1M tokens | Cache readper 1M tokens | Price verified on | Source |
|---|---|---|---|---|---|---|
| OpenRouterDefault | Not configured | $1.10 | $4.40 | $0.55 | openrouter.ai/openai/o3-mini |
The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.
Cost calculator
Estimate what a batch of calls to o3 Mini costs. The starting numbers are examples. Change them to match your task.
Part of the input tokens above, billed at the cache read price.
- Cost per call
- $0.0033
- 4 credits
- Cost of 100 calls
- $0.33
- 400 credits
Calculated from the OpenRouter prices verified on 21 Oct 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.
Parameters you can set
These are the parameters LLMCompare can set when it calls the model through OpenRouter.
| Parameter | Type | Range or options | Default |
|---|---|---|---|
max_tokens | Integer | 1 to 100,000 | Provider default |
seed | Integer | -2,147,483,648 to 4,294,967,295 | Provider default |
response_format | One of | textjson_object | Provider default |
About o3 Mini
OpenAI o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding. This model supports the `reasoning_effort` parameter, which can be set to...
Description as published for this model. LLMCompare has not edited it.
Models to compare with o3 Mini
Text models from the same provider and models at the nearest price. The order is not a ranking.
| Add to comparison | Model | Context | Max output | Input priceper 1M tokens | Output priceper 1M tokens | Features | Released | On LLMCompare |
|---|---|---|---|---|---|---|---|---|
o4 Mini HighOpenAIopenai/o4-mini-high | 200k | 100k | $1.10 | $4.40 | ReasoningJSONToolsCacheVision | No route yet | ||
o4 MiniOpenAIopenai/o4-mini | 200k | 100k | $1.10 | $4.40 | JSONToolsCacheVision | No route yet | ||
o3 Mini HighOpenAIopenai/o3-mini-high | 200k | 100k | $1.10 | $4.40 | ReasoningJSONToolsCache | No route yet | ||
Muse Spark OpenMetameta/muse-spark-open | 1.05M | 944k | $1.25 | $4.25 | ReasoningJSONToolsCacheVision | No route yet | ||
Muse Spark 1.3Metameta/muse-spark-1.3 | 1.05M | 944k | $1.25 | $4.25 | ReasoningJSONToolsCacheVision | No route yet | ||
Muse Spark 1.2Metameta/muse-spark-1.2 | 1.05M | 944k | $1.25 | $4.25 | ReasoningJSONToolsCacheVision | No route yet |
Questions about o3 Mini
- How much does o3 Mini cost?
- On the OpenRouter route, o3 Mini costs $1.10 per 1 million input tokens and $4.40 per 1 million output tokens, in US dollars. Input tokens that o3 Mini reads from the prompt cache cost $0.55 per 1 million tokens. LLMCompare verified this price on 21 Oct 2026.
- What is the context length of o3 Mini?
- o3 Mini has a context length of 200,000 tokens and returns up to 100,000 output tokens in one call.
- What inputs does o3 Mini accept?
- o3 Mini accepts these inputs: Text, File. o3 Mini returns: Text.
- Can I test o3 Mini on my own data?
- Not yet. LLMCompare lists the prices and parameters of o3 Mini, but no route to o3 Mini is configured on LLMCompare, so it cannot be selected for an evaluation.