Data points: 192
Model compare
GPT-5.6 Sol vs GPT-5.6 Terra
The readout for GPT-5.6 Sol and GPT-5.6 Terra, before the detailed comparison sheet.
Key Takeaways
Weighted outcome: GPT-5.6 Sol. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.6 Sol
GPT-5.6 Sol has the higher weighted result; Model A / B score 92 to 8.
Evidence depth
192 data points
Includes 63 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with GPT-5.6 Sol
The charts below split 73 high-signal samples across speed, scores, and audit health.
Change comparison
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.
Comparison sheet
This report only uses LMSpeed data for GPT-5.6 Sol and GPT-5.6 Terra: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-5.6 Sol | GPT-5.6 Terra |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 92.0 pts | 8.0 pts |
| Benchmark category leads | 7 categories | 0 categories |
| Operational advantages | Average speed, Free providers, Provider coverage | Cheapest input price, First-token latency |
| Context window | 1.1M tokens | 1.1M tokens |
| Max output | 128K tokens | 128K tokens |
| Modalities | Input FileImageText Output Text | Input FileImageText Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
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 metadata
Model metadata
| Model compare | GPT-5.6 Sol | GPT-5.6 Terra |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Jul 2026 | Jul 2026 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2026-02-16 | 2026-02-16 |
| OpenRouter ID | openai/gpt-5.6-sol | openai/gpt-5.6-terra |
| References | No data | No data |
When to choose each model
This report only uses LMSpeed data for GPT-5.6 Sol and GPT-5.6 Terra: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-5.6 Sol
GPT-5.6 Sol is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Math) and operational dimensions (Average speed, Free providers, Provider coverage).
GPT-5.6 Terra
GPT-5.6 Terra has these operational advantages: Cheapest input price, First-token latency.
Benchmark score comparison
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Category performance
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
- Model A coverage
- 7 / 8
- Model B coverage
- 7 / 8
- Shared
- 7 shared categories
Avg. score
GPT-5.6 Sol
61
Avg. score
GPT-5.6 Terra
58.5
Agents
GPT-5.6 Sol leads by 4.3
Coding
GPT-5.6 Sol leads by 2.8
Reasoning
GPT-5.6 Sol leads by 2.4
Knowledge
GPT-5.6 Sol leads by 0.2
Math
GPT-5.6 Sol leads by 2.5
Multilingual
No data
Multimodal
GPT-5.6 Sol leads by 4.8
Instruction following
GPT-5.6 Sol leads by 0.5
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.6 Sol
winner72.7
Rank #1/16 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
69.6
Rank #2/16 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner73.5
Rank #1/4 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
52.9
Rank #2/4 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner83.0
Rank #2/100 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
78.0
Rank #8/100 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
13.81 s
Rank #38/74 · confidence 4
GPT-5.6 Terra
winner0.73 s
Rank #14/74 · confidence 4
GPT-5.6 Sol
13.81 s
Rank #66/74 · confidence 4
GPT-5.6 Terra
winner0.73 s
Rank #20/74 · confidence 4
GPT-5.6 Sol
57.2 tok/s
Rank #52/74 · confidence 4
GPT-5.6 Terra
winner86.9 tok/s
Rank #43/74 · confidence 4
GPT-5.6 Sol
$4.00/M
Rank #160/179 · confidence 4
GPT-5.6 Terra
winner$2.00/M
Rank #138/179 · confidence 4
GPT-5.6 Sol
$8.00/M
Rank #162/179 · confidence 4
GPT-5.6 Terra
winner$4.50/M
Rank #147/179 · confidence 4
GPT-5.6 Sol
$20.00/M
Rank #162/179 · confidence 4
GPT-5.6 Terra
winner$12.00/M
Rank #147/179 · confidence 4
GPT-5.6 Sol
winner92.5
Rank #1/17 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
83.9
Rank #4/17 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner32.3
Rank #1/83 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
30.0
Rank #3/83 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner7.8
Rank #2/11 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
0.8
Rank #4/11 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner93.0
Rank #2/29 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
83.8
Rank #8/29 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
77.7
Rank #15/100 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
winner79.7
Rank #7/100 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner92.8%
Rank #11/211 · confidence 4
GPT-5.6 Terra
74.6%
Rank #120/211 · confidence 4
GPT-5.6 Sol
winner46.0%
Rank #11/208 · confidence 4
GPT-5.6 Terra
11.4%
Rank #108/208 · confidence 4
GPT-5.6 Sol
winner91.9
Rank #1/33 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
87.4
Rank #2/33 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner65.9
Rank #1/9 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
57.6
Rank #3/9 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner77.4
Rank #2/70 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
76.7
Rank #4/70 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
88.0
Rank #3/17 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
88.0
Rank #3/17 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner60.6
Rank #3/5 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
55.8
Rank #4/5 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
87.0
Rank #3/9 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
87.0
Rank #3/9 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner67.2
Rank #4/15 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
64.9
Rank #6/15 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner56.9%
Rank #5/204 · confidence 4
GPT-5.6 Terra
44.6%
Rank #49/204 · confidence 4
GPT-5.6 Sol
winner64.6
Rank #6/49 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
63.4
Rank #8/49 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner56.1
Rank #8/108 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
53.9
Rank #15/108 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner39.4
Rank #8/25 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
30.8
Rank #13/25 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner61.5
Rank #23/81 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
58.3
Rank #32/81 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
96.9
Rank #1/62 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
96.9
Rank #1/62 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner89.0
Rank #1/7 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
84.9
Rank #2/7 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner83.0
Rank #1/35 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
68.3
Rank #2/35 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner89.0
Rank #1/47 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
84.9
Rank #2/47 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner94.6
Rank #1/31 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
92.9
Rank #7/31 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner60.5
Rank #1/6 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
57.7
Rank #4/6 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner33.1
Rank #2/7 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
32.7
Rank #3/7 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner94.1
Rank #3/108 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
92.5
Rank #14/108 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner49.5
Rank #3/108 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
42.9
Rank #13/108 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner59.4
Rank #3/101 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
46.8
Rank #19/101 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner58.9
Rank #5/111 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
55.0
Rank #14/111 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner83.6
Rank #8/69 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
82.2
Rank #12/69 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner92.2
Rank #12/101 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
87.9
Rank #26/101 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner22.0
Rank #12/40 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
0.1
Rank #40/40 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner84.6
Rank #1/9 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
82.0
Rank #5/9 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner83.4
Rank #4/65 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
80.7
Rank #8/65 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner83.0
Rank #4/31 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
80.7
Rank #10/31 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner84.7
Rank #6/44 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
75.3
Rank #12/44 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner72.7
Rank #29/84 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
71.2
Rank #33/84 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner56.2
Rank #1/8 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
51.0
Rank #2/8 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner94.9
Rank #1/69 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
91.6
Rank #4/69 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner92.2
Rank #1/31 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
87.5
Rank #6/31 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner84.5
Rank #1/15 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
81.8
Rank #3/15 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner33.7
Rank #1/6 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
23.2
Rank #2/6 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner91.9
Rank #1/53 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
87.4
Rank #3/53 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner62.6
Rank #2/15 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
50.2
Rank #3/15 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner34.6
Rank #2/11 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
20.8
Rank #6/11 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner44.3
Rank #3/17 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
40.2
Rank #5/17 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner58.0
Rank #3/24 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
53.1
Rank #8/24 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner57.8
Rank #4/65 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
50.2
Rank #7/65 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner51.2
Rank #4/16 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
45.6
Rank #8/16 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner61.1
Rank #5/61 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
53.8
Rank #12/61 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner1735.0
Rank #5/66 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
1583.0
Rank #10/66 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
winner87.2
Rank #10/14 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
85.2
Rank #11/14 · confidence 3 · eval date 2026-07-09
GPT-5.6 Sol
85.1
Rank #44/82 · confidence 3 · eval date 2026-07-09
GPT-5.6 Terra
winner86.3
Rank #40/82 · confidence 3 · eval date 2026-07-09
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.6 Sol | GPT-5.6 Terra |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GPT-5.6 Sol | GPT-5.6 Terra |
|---|---|---|
YUNWU API10 tests | GPT-5.6 Sol speed / latency 53 tok/s / 2164ms input / output No data | GPT-5.6 Terra speed / latency N/A / N/A input / output No data |
S3AI API5 tests | GPT-5.6 Sol speed / latency N/A / N/A input / output No data | GPT-5.6 Terra speed / latency 50 tok/s / 3051ms input / output No data |
UU API5 tests | GPT-5.6 Sol speed / latency 47 tok/s / 3826ms input / output No data | GPT-5.6 Terra speed / latency N/A / N/A input / output No data |
VSLLM5 tests | GPT-5.6 Sol speed / latency 44 tok/s / 7130ms input / output No data | GPT-5.6 Terra speed / latency N/A / N/A input / output No data |
星辰·AI5 tests | GPT-5.6 Sol speed / latency 37 tok/s / 5320ms input / output No data | GPT-5.6 Terra speed / latency N/A / N/A input / output No data |
GPT-5.6 Sol gpt-5.6-sol speed / latency No data input / output $0/M/$0/M | GPT-5.6 Terra gpt-5.6-terra speed / latency No data input / output $0/M/$0/M | |
GPT-5.6 Sol gpt-5.6-sol speed / latency No data input / output $0/M/$0/M | GPT-5.6 Terra gpt-5.6-terra speed / latency No data input / output $0/M/$0/M | |
GPT-5.6 Sol gpt-5.6-sol speed / latency No data input / output $0/request | GPT-5.6 Terra gpt-5.6-terra speed / latency No data input / output $0/request | |
GPT-5.6 Sol gpt-5.6-sol-免费 speed / latency No data input / output $0.0030/request | GPT-5.6 Terra gpt-5.6-terra-免费 speed / latency No data input / output $0.0030/request | |
GPT-5.6 Sol gpt-5.6-sol speed / latency No data input / output $0.0079/M/$0.048/M | GPT-5.6 Terra gpt-5.6-terra speed / latency No data input / output $0.0039/M/$0.024/M |
FAQ
Weighted outcome: GPT-5.6 Sol. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
- Why is this comparison indexable?
- It has 6 verifiable comparison points, and both models have pricing or benchmark data.
- Are missing metrics invented?
- No. Metrics without LMSpeed data are omitted from this report.