OpenAI

o3 Mini (batch) API pricing.

o3 Mini (batch) is OpenAI’s model on the API market, released 31 Jan 2025. Prices are per million tokens in USD, as last read from the price list.

$0.55Input / 1M
$2.20Output / 1M
200KContext
100KMax output
Capability scores
Epoch AI
Epoch Capabilities Index
140
Range 138 to 142 · #121 of 271 models Epoch has scored

The index combines many benchmarks into one general-capability score; the range is how sure Epoch is of the number. Each area score is this site's average of the model's Epoch results in that area, where 0 is what guessing would score and 100 is perfect. Compare every model, and value for money →

Source: Epoch AI, Capabilities & benchmarking (licensed CC BY 4.0). Data refreshed 2 November 2026. These are Epoch's own tests; other benchmark sites can rank models differently.

Cheaper models that come close
Our working on Epoch's index
  1. GLM-5.3-Flash · Z.ai (Zhipu AI)index 153.22 · 95% cheaper
  2. Qwen3.7 Flash · Alibabaindex 144.14 · 94% cheaper
  3. gpt-oss-20b · OpenAIindex 137.75 (3 below) · 94% cheaper
  4. Qwen 3.5 Flash (hosted 35B-A3B) · Alibabaindex 143.61 · 88% cheaper

Models within 5 points of o3 Mini (batch) on Epoch's Capabilities Index that cost less, comparing a typical chat mix (three parts input to one part output). A few points of index is a small difference and says nothing about your task: a place to start testing, not a verdict. Capability against price for every model.

Specification
USD per million tokens
Provider
OpenAI
Model id
openai/o3-mini:batch
Input
$0.55
Output
$2.20
Cached input
$0.28
Context window
200K tokens
Maximum output
100K tokens
Takes
text, file
Returns
text
Tool use
Yes
Reasoning
Yes
Released
31 Jan 2025
First tracked
17 Sept 2026

At $0.55 per million input tokens, o3 Mini (batch) is dearer than 192 of the 340 models on the price list.

Price changes
Tracked since 17 Sept 2026

No price change has been recorded since tracking began on 17 Sept 2026. Prices are checked every six hours, and any change is listed here and on model changes.

Want an email when this model's price changes? Tell us →

More from OpenAI
Cheapest input first
  1. gpt-oss-20b$0.030 in · $0.13 out
  2. GPT-5 Nano$0.050 in · $0.40 out
  3. gpt-oss-safeguard-20b$0.075 in · $0.30 out
  4. GPT-6 Luna Pro$0.10 in · $0.50 out
  5. GPT-6 Luna$0.10 in · $0.50 out
  6. GPT-4.1 Nano$0.10 in · $0.40 out
  7. gpt-oss-120b$0.15 in · $0.60 out
  8. GPT-4o-mini$0.15 in · $0.60 out

Prices and specifications come from OpenRouter’s catalogue, last read 2 Nov 2026. A provider’s own price may differ; how this is collected.