OpenAI: o1

o1 is OpenAI's reasoning-focused model, released 2024-12, that spends more time thinking before responding. Trained with large-scale reinforcement learning, it uses chain of thought and is optimized for math, science, programming, and other STEM tasks. It achieves PhD-level accuracy on physics, chemistry, and biology benchmarks.

Modalities
inTextinImageinFileoutText
Price / 1M−70%
$4.50 / $18.00$15.00 / $60.00
Context
200K
Knowledge cutoff
2023-10-31

Capabilities

ReasoningVisionTool useLong contextPrompt cachingStructured output

Channels

Same weights on every channel. Requests route to the cheapest healthy one; the channel used is printed on each billing line.

Provider
Discount
Input /M
Output /M
Cache Read /M
Cache Create 5m /M
Cache Create 1h /M
Codexcheap
−70%
$4.50
$18.00
$2.25
Defaultstable
−30%
$10.50
$42.00
$5.25

Cost Calculator

Pick a channel and a usage scenario, then drag to your workload — each scenario assumes a different prompt-cache hit rate.

Channel
Scenario
Unit $4.50 / $18.00 /1MDaily chat: 40% cache hit assumed · cache read $2.25 /1M
List price $4032.00On MirAPI$1209.60/ moYou save $2822.40Create an API key

Benchmarks

bar = score (0–100) · ▏ median

Scores from vendor reports and public leaderboards. No private evals.

Coding Index
Code
39.7
#55

Showcase

Three fixed prompts, identical for every chat model. Outputs are archived verbatim — copy the prompt to reproduce.

Task prompt · identical for all models
Build a single-file HTML page using three.js from a CDN: a low-poly planet with a tilted ring of ~200 orbiting particles, a soft key light plus rim light, slow auto-rotation, and drag-to-orbit controls. No build tools — one file only.
Archived output
Archive not published yet

Every model will run this exact prompt; the output lands here verbatim, with tokens and per-run cost.

Quick Start

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.mirapi.ai/v1",   # changed
    api_key=os.environ["MIRAPI_API_KEY"],   # changed
)

resp = client.chat.completions.create(
    model="openai/o1",
    messages=[{"role": "user", "content": "Hello"}],
)
Wire o1 into your product

1M free tokens to start · no card · OpenAI-compatible, one base_url change

Start free