#62 GPT-5 Nano
medium- Cost
- $0.006
- Time
- 108.5s
- Tokens
- 13,209 tok
OpenAI
Release: 2025-08-07
Tested on: 2026-04-11 01:44
openai/gpt-5-nano::medium
~120B total (~5B active)MoEClosedEstimated Summary
GPT-5 Nano scores 6.3 on AI BENCHY and ranks #62. It has N/A reliability, a 59.3% pass rate, $0.066 total cost, and 44.13s average response time.
What makes GPT-5 Nano unique: Its total benchmark cost is unusually low for its score range.
Model facts
Researched on 2026-08-12
- Parameters
- ~120B total (~5B 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.
6.3
Consistency
6.5
N/A
$0.066
Total Output Tokens
161,268
Total Input Tokens
0
Input Price
$0.050 / 1M
Output Price
$0.400 / 1M
Flaky tests
8
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
Run history
| Tested on | Score | Reliability | Tests Correct | Total Cost | Compare |
|---|---|---|---|---|---|
| 2026-08-14 02:07 Re-test | 6.0 | 10.0 | $0.118 | Compare | |
| 2026-07-16 22:32 New test added | 6.1 | 10.0 | $0.114 | Compare | |
| 2026-06-04 13:44 New test added | 6.3 | 10.0 | $0.081 | Compare | |
| 2026-05-22 00:17 Suite changed | 6.1 | 10.0 | $0.076 | Compare | |
| 2026-04-11 01:44 First recorded run | 6.3 | N/A | $0.066 | Current run |
Run comparison
| Run | Benchmark coverage | Score | Consistency | Reliability | Tests Correct | Flaky tests | Total Output Tokens | Total Input Tokens | Total Cost | Response Time (avg) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-04-11 01:44 · First recorded run | 54/54 attempts | 6.3 | 6.5 | N/A | 7/18 | 8 | 161,268 | 0 | $0.066 | 44.13s |
| 2026-08-14 02:07 · Re-test | 66/66 attempts | 6.0 | 6.6 | 10.0 | 8/22 | 9 | 282,437 | 94,944 | $0.118 | 54.20s |
| Difference | — | +0.3 | -0.1 | -1 | -1 | -121169 | -94944 | -$0.052 | -10068ms |
Benchmark coverage differs: 54/54 attempts (Target: 3 repeats per test) versus 66/66 attempts (Target: 3 repeats per test). Totals and repeat-sensitive metrics are not directly comparable.
These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.
Charts
Choose the first model, then click a second model to open a side-by-side page.
Top Models by Score
Score vs Total Cost
Response Time (avg)
Score vs Response Time (avg)
Total Output Tokens
Score vs Total Output Tokens
Quick Compare
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Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Anti-AI Tricks | 6.5 | 7.9 | |
| Coding | 6.7 | 3.5 | |
| Combined | 10.0 | 10.0 | |
| Data parsing and extraction | 3.7 | 1.7 | |
| Domain specific | 5.2 | 4.4 | |
| General Intelligence | 4.1 | 10.0 | |
| Instructions following | 8.5 | 6.8 | |
| Puzzle Solving | 5.3 | 7.2 | |
| Tool Calling | 10.0 | 10.0 |