OpenAI
Release: 2025-08-05
Tested on: 2026-04-21 12:42
openai/gpt-oss-120b::none
117B total (5.1B active)MoEOpen source
(medium)
(none)
Summary
gpt-oss-120b scores 5.2 on AI BENCHY and ranks #91. It has N/A reliability, a 38.9% pass rate, $0.009 total cost, and 11.96s average response time.
What makes gpt-oss-120b unique: Its total benchmark cost is unusually low for its score range.
Model facts
Researched on 2026-08-12
- Parameters
- 117B total (5.1B active)
- Architecture
- MoE
- Availability
- Open source
- License
- Apache-2.0
5.2
Consistency
7.9
N/A
$0.009
Total Output Tokens
44,652
Total Input Tokens
0
Input Price
$0.000 / 1M
Output Price
$0.000 / 1M
Flaky tests
5
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Run history
| Tested on | Score | Reliability | Tests Correct | Total Cost | Compare |
|---|---|---|---|---|---|
| 2026-05-08 15:31 Suite changed | 3.7 | 10.0 | $0.010 ↓ | Compare | |
| 2026-04-21 12:42 First recorded run | 5.2 | N/A | $0.009 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-04-21 12:42 · First recorded run | 54/54 attempts | 5.2 | 7.9 | N/A | 4/18 | 5 | 44,652 | 0 | $0.009 | 11.96s |
| 2026-05-08 15:31 · Suite changed | 57/57 attempts | 3.7 | 7.8 | 10.0 | 6/19 | 2 | 51,664 | 9,081 | $0.010 | 21.61s |
| Difference | — | +1.5 | +0.1 | -2 | +3 | -7012 | -9081 | -$0.001 | -9656ms |
Benchmark coverage differs: 54/54 attempts (Target: 3 repeats per test) versus 57/57 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.
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 | 6.6 | 8.0 | |
| Coding | 4.3 | 1.1 | |
| Combined | 3.0 | 10.0 | |
| Data parsing and extraction | 6.5 | 10.0 | |
| Domain specific | 3.0 | 10.0 | |
| General Intelligence | 4.6 | 10.0 | |
| Instructions following | 8.4 | 6.9 | |
| Puzzle Solving | 4.5 | 4.8 | |
| Tool Calling | 3.0 | 10.0 |