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#128

GPT-5.4 Mini

OpenAI Release: 2026-03-17 Tested on: 2026-07-16 22:33 openai/gpt-5.4-mini::none
~400B total (~17B active)MoEClosedEstimated
(medium) (none)

Summary

GPT-5.4 Mini scores 5.9 on AI BENCHY and ranks #128. It has 10.0 reliability, a 33.3% pass rate, $0.095 total cost, and 1.53s average response time.

What makes GPT-5.4 Mini unique: It is notably fast compared with similar models.

Model facts

Researched on 2026-08-12

Estimated
Parameters
~400B total (~17B active)
Architecture
MoE
Availability
Closed
License
-

Best estimate from public evidence; the vendor did not disclose every value. Vendor does not disclose the architecture or count.

Score

5.9

Consistency

8.9

Total Output Tokens

7,880

Total Input Tokens

79,067

Input Price

$0.750 / 1M

Output Price

$4.500 / 1M

Tests Correct

Wrong Tests: 16

Attempt pass rate: 33.3%

Flaky tests

3

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

1.53s

Response Time (max): 9.92s

Response Time (total): 33.74s

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#128 GPT-5.4 Mini

none
Cost
$0.010
Time
11.7s
Tokens
2,151 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-08-14 02:16 Re-test 5.9 10.0 $0.095 Compare
2026-07-16 22:33 New test added 5.9 10.0 $0.095 Current run
2026-06-04 13:45 New test added 4.9 10.0 $0.038 Compare
2026-05-22 00:18 Suite changed 4.9 10.0 $0.035 Compare
2026-04-11 01:44 First recorded run 5.1 N/A $0.032 Compare

This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.

Run comparison

RunBenchmark coverageScoreConsistencyReliabilityTests CorrectFlaky testsTotal Output TokensTotal Input TokensTotal CostResponse Time (avg)
2026-07-16 22:33 · New test added66/66 attempts5.98.910.06/2237,88079,067$0.0951.53s
2026-08-14 02:16 · Re-test66/66 attempts5.99.310.06/2227,89879,076$0.0951.58s
Difference0.0-0.40.00+1-18-9-$0.001-51ms

These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price
2026-06-04 15:40 $0.750 / 1M $4.500 / 1M

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 3.1 8.1
Coding 5.5 10.0
Combined 6.5 10.0
Data parsing and extraction 10.0 10.0
Domain specific 3.5 4.4
General Intelligence 4.8 10.0
Instructions following 6.3 10.0
Puzzle Solving 5.4 10.0
Tool Calling 3.0 10.0
Trivia 3.0 10.0

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