NanoGPTOpenAI o3 model ID, context window & pricing
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Quick facts
Model ID openai/o3
Source NanoGPT
Context Window 200000
Pricing $2.00 input / $8.00 output per 1M tokens
Capabilities reasoning
Model overview
OpenAI o3 is an AI model from NanoGPT with 200000 token context window and text input support.
Published pricing is $2.00 input and $8.00 output per 1M tokens.
- Workloads that use text inputs with text outputs.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID openai/o3
Provider NanoGPT
Family o
Status -
Knowledge Cutoff 2024-05
Release Date 2025-04-16
Input Modalities text
Output Modalities text
Context Window 200000
Input Limit 200000
Output Limit 100000
Tool Calling No
Reasoning Yes
Structured Output No
Temperature Control No
Open Weights No
Input Cost / 1M tokens $2.00
Output Cost / 1M tokens $8.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $1.00
Cache Write Cost / 1M tokens -