Data points: 133
The readout for GPT-5.4 and gpt-oss-120b, before the detailed comparison sheet.
Decision read
GPT-5.4
GPT-5.4 currently has the stronger profile, with verified wins split 4 to 0.
Evidence depth
133 data points
Includes 36 benchmark rows, 1 audit samples, and 3 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 40 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
Model compare GPT-5.4 vs gpt-oss-120bgpt-5-4-vs-gpt-oss-120b | Model A GPT-5.4 | Model B gpt-oss-120b |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 0 wins |
| Where it leads | Cheapest input price, Free providers, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
GPT-5.4
63.6
Avg. score
gpt-oss-120b
56.5
Selected category
Agents
GPT-5.4 leads by 26.1
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.4
winner86.0
Rank #3/96 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
34.0
Rank #71/96 · confidence 1 · eval date 2025-08-05
GPT-5.4
106.7 tok/s
Rank #47/113 · confidence 4
gpt-oss-120b
winner330.2 tok/s
Rank #1/113 · confidence 4
GPT-5.4
0.69 s
Rank #24/113 · confidence 4
gpt-oss-120b
winner0.50 s
Rank #8/113 · confidence 4
GPT-5.4
winner0.69 s
Rank #19/113 · confidence 4
gpt-oss-120b
6.56 s
Rank #58/113 · confidence 4
GPT-5.4
$5.63/M
Rank #116/138 · confidence 4
gpt-oss-120b
winner$0.262/M
Rank #20/138 · confidence 4
GPT-5.4
$2.50/M
Rank #114/138 · confidence 4
gpt-oss-120b
winner$0.150/M
Rank #20/138 · confidence 4
GPT-5.4
$15.00/M
Rank #116/138 · confidence 4
gpt-oss-120b
winner$0.600/M
Rank #22/138 · confidence 4
GPT-5.4
winner23.4
Rank #2/54 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
1.1
Rank #37/54 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner74.0
Rank #4/67 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
50.7
Rank #50/67 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner87.5
Rank #4/65 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
29.2
Rank #53/65 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner10.6%
Rank #68/150 · confidence 4
gpt-oss-120b
5.2%
Rank #104/150 · confidence 4
GPT-5.4
winner74.8%
Rank #75/152 · confidence 4
gpt-oss-120b
67.2%
Rank #96/152 · confidence 4
GPT-5.4
winner85.3
Rank #1/11 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
71.6
Rank #8/11 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner56.6
Rank #2/74 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
38.9
Rank #47/74 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner57.6
Rank #2/69 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
23.5
Rank #51/69 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner71.0
Rank #3/36 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
30.4
Rank #26/36 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner86.4
Rank #5/83 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
21.3
Rank #72/83 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner47.1%
Rank #13/149 · confidence 4
gpt-oss-120b
36.0%
Rank #81/149 · confidence 4
GPT-5.4
winner96.9
Rank #1/79 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
39.1
Rank #61/79 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner92.0
Rank #2/74 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
78.2
Rank #48/74 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner41.6
Rank #3/74 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
18.5
Rank #41/74 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner51.4
Rank #3/77 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
23.8
Rank #52/77 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner50.0
Rank #4/68 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
21.5
Rank #53/68 · confidence 1 · eval date 2025-08-05
GPT-5.4
88.6
Rank #15/68 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
winner91.2
Rank #7/68 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner100.0
Rank #1/59 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
36.4
Rank #41/59 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner1264.0
Rank #21/50 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
1011.0
Rank #47/50 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner60.0
Rank #41/70 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
24.1
Rank #62/70 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner92.6
Rank #1/66 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
45.9
Rank #57/66 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner73.9
Rank #18/70 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
69.0
Rank #32/70 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner33.3
Rank #2/16 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
3.1
Rank #14/16 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner88.3
Rank #3/81 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
33.0
Rank #67/81 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner64.9
Rank #3/42 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
29.6
Rank #39/42 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner41.1
Rank #4/32 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
13.2
Rank #22/32 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner44.8
Rank #4/27 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
14.8
Rank #23/27 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner1395.0
Rank #5/33 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
796.0
Rank #24/33 · confidence 1 · eval date 2025-08-05
GPT-5.4
winner87.1
Rank #27/68 · confidence 4 · eval date 2026-03-05
gpt-oss-120b
65.8
Rank #47/68 · confidence 1 · eval date 2025-08-05
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.4 | gpt-oss-120b |
|---|---|---|
Winner: GPT-5.4 | GPT-5.4 gpt-5.4 Audit score 82 80 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GPT-5.4 | gpt-oss-120b |
|---|---|---|
5 tests | GPT-5.4 speed / latency 44 tok/s / 2518ms input / output No data | gpt-oss-120b |
This report only uses LMSpeed data for GPT-5.4 and gpt-oss-120b: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.4 | gpt-oss-120b |
|---|---|---|
| When to choose each model | GPT-5.4 GPT-5.4 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. | gpt-oss-120b gpt-oss-120b does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. |
TL;DR: GPT-5.4 leads across 133 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.4 vs gpt-oss-120b into nearby model comparisons with enough verified LMSpeed data.
| No data |
| Model metadata | GPT-5.4 exposes 1.1M tokens; notable signals: Text input, Image input, File input, Text output. | gpt-oss-120b exposes 131.1K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Context window | 1.1M tokens | 131.1K tokens |
| Max output | 128K tokens | 131.1K tokens |
| Released | Mar 2026 | No data |
| Modalities | Input TextImageFile Output Text | Input Text Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | 120B |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | No data | 2024-06-30 |
| OpenRouter ID | openai/gpt-5.4 | openai/gpt-oss-120b |
| References | No data | No data |
gpt-oss-120b [极速0.04/次]GPT-OSS-120B No audit yet |
speed / latency
N/A / N/A
input / output
No data
Crond0 tests | GPT-5.4 gpt-5.4-2026-03-05 speed / latency N/A / N/A input / output $75.00/M / $450.00/M | gpt-oss-120b gpt-oss-120b-免费 speed / latency N/A / N/A input / output $15.00/M / $15.00/M |
|---|
R的API小站0 tests | GPT-5.4 gpt-5.4 speed / latency N/A / N/A input / output $2.00/M / $12.00/M | gpt-oss-120b [极速0.04/次]GPT-OSS-120B speed / latency N/A / N/A input / output $0.032/M / $0.032/M |
|---|
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
