Data points: 83
Model compare
The readout for GPT-5.1 and MiMo-V2.5, before the detailed comparison sheet.
Weighted outcome: MiMo-V2.5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
MiMo-V2.5
MiMo-V2.5 has the higher weighted result; Model A / B score 16 to 84.
Evidence depth
83 data points
Includes 9 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with MiMo-V2.5
The charts below split 17 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-5.1 and MiMo-V2.5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-5.1 | MiMo-V2.5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 16.0 pts | 84.0 pts |
| Benchmark category leads | 0 categories | 3 categories |
| Operational advantages | Average speed, First-token latency, Free providers, Provider coverage | Cheapest input price |
| Context window | 400K tokens | 1.1M tokens |
| Max output | 128K tokens | 131.1K tokens |
| Modalities | Input ImageTextFile 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-5.1 | MiMo-V2.5 |
|---|---|---|
| Developer | OpenAI | Xiaomi |
| Released | Nov 2025 | Apr 2026 |
| Parameters | No data | No data |
| Tokenizer | GPT | Other |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | openai/gpt-5.1 | xiaomi/mimo-v2.5 |
| References | No data | No data |
This report only uses LMSpeed data for GPT-5.1 and MiMo-V2.5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-5.1
GPT-5.1 has these operational advantages: Average speed, First-token latency, Free providers, Provider coverage.
MiMo-V2.5
MiMo-V2.5 is stronger in benchmark categories (Agents, Coding, Reasoning) and operational dimensions (Cheapest input price).
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-5.1
52
Avg. score
MiMo-V2.5
51.9
MiMo-V2.5 leads by 2.6
MiMo-V2.5 leads by 1.9
MiMo-V2.5 leads by 3.8
GPT-5.1
GPT-5.1
No data
MiMo-V2.5
GPT-5.1
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.1
56.0
Rank #41/84 · confidence 1 · eval date 2025-11-13
MiMo-V2.5
56.0
Rank #41/84 · confidence 2 · eval date 2026-04-22
GPT-5.1
$10.00/M
Rank #120/162 · confidence 4
MiMo-V2.5
winner$0.280/M
Rank #6/162 · confidence 4
GPT-5.1
$3.44/M
Rank #117/162 · confidence 4
MiMo-V2.5
winner$0.175/M
Rank #11/162 · confidence 4
GPT-5.1
$1.25/M
Rank #107/162 · confidence 4
MiMo-V2.5
winner$0.140/M
Rank #17/162 · confidence 4
GPT-5.1
winner87.3%
Rank #33/188 · confidence 4
MiMo-V2.5
84.9%
Rank #45/188 · confidence 4
GPT-5.1
winner26.5%
Rank #40/187 · confidence 4
MiMo-V2.5
25.2%
Rank #46/187 · confidence 4
GPT-5.1
winner43.3%
Rank #42/185 · confidence 4
MiMo-V2.5
43.1%
Rank #43/185 · confidence 4
GPT-5.1
1217.0
Rank #39/66 · confidence 1 · eval date 2025-11-13
MiMo-V2.5
winner1291.0
Rank #16/66 · confidence 2 · eval date 2026-04-22
GPT-5.1
41.2
Rank #35/50 · confidence 1 · eval date 2025-11-13
MiMo-V2.5
winner46.9
Rank #27/50 · confidence 2 · eval date 2026-04-22
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.1 | MiMo-V2.5 |
|---|---|---|
| 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-5.1 | MiMo-V2.5 |
|---|---|---|
20 tests | GPT-5.1 speed / latency N/A / N/A input / output No data | MiMo-V2.5 speed / latency 74 tok/s / 4254ms input / output No data |
5 tests | GPT-5.1 speed / latency |
Weighted outcome: MiMo-V2.5. 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 callingStructured outputsJSON modeReasoning |
|---|
N/A / N/A
input / output
No data
MiMo-V2.5 speed / latency 66 tok/s / 6202ms input / output No data |
N1N5 tests | GPT-5.1 speed / latency 96 tok/s / 1862ms input / output No data | MiMo-V2.5 speed / latency N/A / N/A input / output No data |
|---|
42公益站0 tests | GPT-5.1 speed / latency N/A / N/A input / output No data | MiMo-V2.5 speed / latency N/A / N/A input / output No data |
|---|
91VIP API0 tests | GPT-5.1 speed / latency N/A / N/A input / output No data | MiMo-V2.5 speed / latency N/A / N/A input / output No data |
|---|
GPT-5.1 gpt-5-1 speed / latency No data input / output $0.020/request | MiMo-V2.5 mimo-v2.5 speed / latency No data input / output $0.100/request |
GPT-5.1 gpt-5.1 speed / latency No data input / output $0.086/M/$0.685/M | MiMo-V2.5 mimo-v2.5 speed / latency No data input / output $0.0096/M/$0.019/M |
GPT-5.1 gpt-5.1 speed / latency No data input / output $0.342/M/$2.74/M | MiMo-V2.5 mimo-v2.5 speed / latency No data input / output $0.019/M/$0.038/M |
