Data points: 130
Model compare
The readout for GPT-5.4 and Inkling, before the detailed comparison sheet.
Weighted outcome: GPT-5.4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.4
GPT-5.4 has the higher weighted result; Model A / B score 77.1 to 22.9.
Evidence depth
130 data points
Includes 34 benchmark rows, 0 audit samples, and 5 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 39 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.
This report only uses LMSpeed data for GPT-5.4 and Inkling: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-5.4 | Inkling |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 77.1 pts | 22.9 pts |
| Benchmark category leads | 5 categories | 2 categories |
| Operational advantages | Cheapest input price, Free providers, Provider coverage | No data |
| Context window | 1.1M tokens | 1.0M tokens |
| Max output | 128K tokens | No data |
| Modalities | Input TextImageFile Output Text |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
| Model compare | GPT-5.4 | Inkling |
|---|---|---|
| Developer | OpenAI | Thinking Machines |
| Released | Mar 2026 | Jul 2026 |
| Parameters | No data | No data |
| Tokenizer | GPT | Other |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | openai/gpt-5.4 | thinkingmachines/inkling |
| References | No data | No data |
This report only uses LMSpeed data for GPT-5.4 and Inkling: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-5.4
GPT-5.4 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Multimodal) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
Inkling
Inkling leads these benchmark categories: Math, Instruction following.
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
57.6
Avg. score
Inkling
53.5
GPT-5.4 leads by 7.7
GPT-5.4 leads by 13.1
GPT-5.4 leads by 2.1
GPT-5.4 leads by 6.2
Inkling leads by 6.4
No data
GPT-5.4 leads by 8.1
Inkling leads by 2.5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.4
winner67.0
Rank #22/90 · confidence 3 · eval date 2026-03-05
Inkling
60.0
Rank #34/90 · confidence 3 · eval date 2026-07-15
GPT-5.4
$15.00/M
Rank #142/169 · confidence 4
Inkling
winner$4.68/M
Rank #107/169 · confidence 4
GPT-5.4
$5.63/M
Rank #141/169 · confidence 4
Inkling
winner$2.57/M
Rank #112/169 · confidence 4
GPT-5.4
$2.50/M
Rank #137/169 · confidence 4
Inkling
winner$1.87/M
Rank #128/169 · confidence 4
GPT-5.4
winner74.0
Rank #6/94 · confidence 3 · eval date 2026-03-05
Inkling
63.3
Rank #54/94 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner23.4
Rank #8/77 · confidence 3 · eval date 2026-03-05
Inkling
5.4
Rank #36/77 · confidence 3 · eval date 2026-07-15
GPT-5.4
10.6%
Rank #97/193 · confidence 4
Inkling
winner29.7%
Rank #36/193 · confidence 4
GPT-5.4
74.8%
Rank #102/194 · confidence 4
Inkling
winner87.2%
Rank #37/194 · confidence 4
GPT-5.4
winner56.6
Rank #5/101 · confidence 3 · eval date 2026-03-05
Inkling
46.1
Rank #40/101 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner71.0
Rank #13/64 · confidence 3 · eval date 2026-03-05
Inkling
52.1
Rank #34/64 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner57.7
Rank #18/42 · confidence 3 · eval date 2026-03-05
Inkling
54.3
Rank #32/42 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner47.1%
Rank #27/191 · confidence 4
Inkling
46.1%
Rank #36/191 · confidence 4
GPT-5.4
42.4
Rank #58/71 · confidence 3 · eval date 2026-03-05
Inkling
winner48.9
Rank #47/71 · confidence 3 · eval date 2026-07-15
GPT-5.4
65.9
Rank #18/57 · confidence 3 · eval date 2026-03-05
Inkling
winner79.0
Rank #9/57 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner92.8
Rank #8/25 · confidence 3 · eval date 2026-03-05
Inkling
87.9
Rank #19/25 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner41.6
Rank #10/101 · confidence 3 · eval date 2026-03-05
Inkling
29.7
Rank #34/101 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner50.0
Rank #11/95 · confidence 3 · eval date 2026-03-05
Inkling
40.0
Rank #26/95 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner51.4
Rank #11/104 · confidence 3 · eval date 2026-03-05
Inkling
40.7
Rank #29/104 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner92.0
Rank #13/101 · confidence 3 · eval date 2026-03-05
Inkling
87.2
Rank #40/101 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner39.8
Rank #13/18 · confidence 3 · eval date 2026-03-05
Inkling
30.0
Rank #16/18 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner88.6
Rank #18/95 · confidence 3 · eval date 2026-03-05
Inkling
63.1
Rank #59/95 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner77.3
Rank #18/60 · confidence 3 · eval date 2026-03-05
Inkling
69.1
Rank #32/60 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner5.7
Rank #22/34 · confidence 3 · eval date 2026-03-05
Inkling
2.1
Rank #30/34 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner81.2
Rank #6/28 · confidence 3 · eval date 2026-03-05
Inkling
73.5
Rank #25/28 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner82.8
Rank #8/24 · confidence 3 · eval date 2026-03-05
Inkling
82.0
Rank #10/24 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner68.5
Rank #17/40 · confidence 3 · eval date 2026-03-05
Inkling
52.6
Rank #33/40 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner78.4
Rank #19/61 · confidence 3 · eval date 2026-03-05
Inkling
73.5
Rank #36/61 · confidence 3 · eval date 2026-07-15
GPT-5.4
70.6
Rank #16/26 · confidence 3 · eval date 2026-03-05
Inkling
winner74.1
Rank #12/26 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner41.1
Rank #13/60 · confidence 3 · eval date 2026-03-05
Inkling
32.3
Rank #19/60 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner75.1
Rank #13/50 · confidence 3 · eval date 2026-03-05
Inkling
63.8
Rank #26/50 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner44.6
Rank #14/55 · confidence 3 · eval date 2026-03-05
Inkling
36.8
Rank #22/55 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner1392.0
Rank #14/60 · confidence 3 · eval date 2026-03-05
Inkling
1237.0
Rank #22/60 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner82.7
Rank #15/27 · confidence 3 · eval date 2026-03-05
Inkling
77.1
Rank #17/27 · confidence 3 · eval date 2026-07-15
GPT-5.4
winner74.7
Rank #17/59 · confidence 3 · eval date 2026-03-05
Inkling
57.4
Rank #33/59 · confidence 3 · eval date 2026-07-15
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.4 | Inkling |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GPT-5.4 | Inkling |
|---|---|---|
0 tests | GPT-5.4 gpt-5.4-2026-03-05 speed / latency N/A / N/A input / output $1.20/M/$7.20/M | Inkling inkling speed / latency N/A / N/A input / output $60.00/M/$60.00/M |
0 tests | GPT-5.4 gpt-5.4 speed / latency N/A / N/A input / output $0.240/M/$1.44/M | Inkling inkling speed / latency N/A / N/A input / output $0/M |
0 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Inkling speed / latency N/A / N/A input / output No data |
0 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Inkling speed / latency N/A / N/A input / output No data |
0 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Inkling speed / latency N/A / N/A input / output No data |
Weighted outcome: GPT-5.4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputAudio inputText outputTool callingReasoning |
|---|
