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#246

gpt-oss-120b

OpenAI Release: 2025-08-05 Tested on: 2026-10-01 01:37 openai/gpt-oss-120b::medium
117B total (5.1B active)MoEOpen source
(medium) (none)

Summary

gpt-oss-120b scores 5.9 on AI BENCHY and ranks #246. It has 10.0 reliability, a 47.8% pass rate, $0.030 total cost, and 31.58s average response time.

What makes gpt-oss-120b unique: It stands out most in Combined, where it ranks #1, while Data parsing and extraction is its weakest area at #16.

Model facts

Researched on 2026-08-12

Reported
Parameters
117B total (5.1B active)
Architecture
MoE
Availability
Open source
License
Apache-2.0
Parameter source Availability source

Score

5.9

Consistency

8.1

Reliability

10.0

Total Cost (Current Price)

$0.030 ↓ -3.7%

Tested at: $0.031

Total Output Tokens

118,831

Total Input Tokens

285,293

Input Price

$0.037 / 1M

Output Price

$0.170 / 1M

Cache Read Price

N/A

Cache Write Price

N/A

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Tests Correct

Wrong Tests: 14

Attempt pass rate: 47.8%

Flaky tests

5

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

Response Time (avg)

31.58s

Response Time (max): 203.90s

Response Time (total): 536.78s

Wrong answer: 10 Did not follow instructions: 3 Invalid tool call: 1

Hamster playing table tennis

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

#246 gpt-oss-120b

medium
Cost
$0.001
Time
26.7s
Tokens
555 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-10-01 01:37 Re-test 5.9 10.0 $0.030 ↓ Current run
2026-07-16 22:24 New test added 6.1 10.0 $0.019 ↓ Compare
2026-06-04 13:44 New test added 6.1 10.0 $0.013 ↓ Compare
2026-05-22 00:18 Suite changed 5.6 10.0 $0.012 Compare
2026-04-21 12:42 First recorded run 5.8 N/A $0.011 Compare

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

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price Cache Read Price Cache Write Price
2026-06-04 15:40 $0.039 / 1M $0.180 / 1M N/A N/A
2026-06-29 01:00 $0.030 / 1M $0.150 / 1M N/A N/A
2026-07-09 20:59 $0.036 / 1M $0.180 / 1M N/A N/A
2026-08-14 12:51 $0.030 / 1M $0.170 / 1M N/A N/A
2026-09-29 18:39 $0.037 / 1M $0.170 / 1M N/A N/A

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

gpt-oss-120bmediumvsGemini 3.1 Flash Liteminimalgpt-oss-120bmediumvsGemini 3.1 Flash Litenonegpt-oss-120bmediumvsSeed-2.0-Litenonegpt-oss-120bmediumvsQwen3.6 Flashnonegpt-oss-120bmediumvsInkling SmallmediumFree Availablegpt-oss-120bmediumvsClaude Sonnet 5nonegpt-oss-120bmediumvsMiMo-V2.6-Prononegpt-oss-120bmediumvsNemotron 3 UltranoneFree Availablegpt-oss-120bmediumvsGLM 5.3 FlashXlowgpt-oss-120bmediumvsQwen3.7 Flashnone

Category Breakdown

Category Score Consistency Tests Correct
Agentic 5.0 10.0
Anti-AI Tricks 6.7 9.9
Coding 5.9 7.0
Combined 6.5 10.0
Data parsing and extraction 6.4 5.9
Domain specific 2.9 4.4
General Intelligence 4.3 10.0
Instructions following 9.9 10.0
Puzzle Solving 5.3 7.2
Tool Calling 9.8 10.0
Trivia 3.0 10.0

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