Data points: 64
Model compare
The readout for Kimi K2.5 and Mercury 2, before the detailed comparison sheet.
Weighted outcome: Tie. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Tie
Tie has the higher weighted result; Model A / B score 50 to 50.
Evidence depth
64 data points
Includes 10 benchmark rows, 0 audit samples, and 5 provider examples.
Selection signal
Tie
The charts below split 15 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 Kimi K2.5 and Mercury 2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Kimi K2.5 | Mercury 2 |
|---|---|---|
| Overall leader | Tie | Tie |
| Weighted overall score | 50.0 pts | 50.0 pts |
| Benchmark category leads | 1 categories | 1 categories |
| Operational advantages | Free providers, Provider coverage | Average speed, First-token latency |
| Context window | 262.1K tokens | 128K tokens |
| Max output | 262.1K tokens | 50K tokens |
| Modalities | Input TextImage Output Text | Input |
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 | Kimi K2.5 | Mercury 2 |
|---|---|---|
| Developer | MoonshotAI | Inception |
| Released | Jan 2026 | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | Other | Other |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | moonshotai/kimi-k2.5 | inception/mercury-2 |
| References | No data | No data |
This report only uses LMSpeed data for Kimi K2.5 and Mercury 2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Kimi K2.5
Kimi K2.5 is stronger in benchmark categories (Reasoning) and operational dimensions (Free providers, Provider coverage).
Mercury 2
Mercury 2 is stronger in benchmark categories (Coding) and operational dimensions (Average speed, First-token latency).
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
Kimi K2.5
50
Avg. score
Mercury 2
52.2
Kimi K2.5
Mercury 2 leads by 2.1
Kimi K2.5 leads by 3.9
Kimi K2.5
Kimi K2.5
Kimi K2.5
Kimi K2.5
Kimi K2.5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Kimi K2.5
winner61.0
Rank #48/127 · confidence 4 · eval date 2026-02-01
Mercury 2
11.0
Rank #116/127 · confidence 1 · eval date 2026-03-01
Kimi K2.5
46.3 tok/s
Rank #117/139 · confidence 4
Mercury 2
winner1112.3 tok/s
Rank #1/139 · confidence 4
Kimi K2.5
winner1.16 s
Rank #42/139 · confidence 4
Mercury 2
3.58 s
Rank #58/139 · confidence 4
Kimi K2.5
winner1.16 s
Rank #73/139 · confidence 4
Mercury 2
3.58 s
Rank #105/139 · confidence 4
Kimi K2.5
$3.00/M
Rank #86/163 · confidence 4
Mercury 2
winner$0.750/M
Rank #29/163 · confidence 4
Kimi K2.5
$1.20/M
Rank #86/163 · confidence 4
Mercury 2
winner$0.375/M
Rank #33/163 · confidence 4
Kimi K2.5
$0.600/M
Rank #81/163 · confidence 4
Mercury 2
winner$0.250/M
Rank #37/163 · confidence 4
Kimi K2.5
12.3%
Rank #83/186 · confidence 4
Mercury 2
winner15.5%
Rank #69/186 · confidence 4
Kimi K2.5
winner78.9%
Rank #78/187 · confidence 4
Mercury 2
77.0%
Rank #88/187 · confidence 4
Kimi K2.5
winner39.6%
Rank #75/184 · confidence 4
Mercury 2
38.7%
Rank #83/184 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Kimi K2.5 | Mercury 2 |
|---|---|---|
| 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 | Kimi K2.5 | Mercury 2 |
|---|---|---|
20 tests | Kimi K2.5 speed / latency N/A / N/A input / output No data | Mercury 2 speed / latency 459 tok/s / 904ms input / output No data |
5 tests | Kimi K2.5 speed / latency N/A / N/A input / output No data | Mercury 2 speed / latency 618 tok/s / 847ms input / output No data |
0 tests | Kimi K2.5 speed / latency N/A / N/A input / output No data | Mercury 2 speed / latency N/A / N/A input / output No data |
0 tests | Kimi K2.5 speed / latency N/A / N/A input / output No data | Mercury 2 speed / latency N/A / N/A input / output No data |
0 tests | Kimi K2.5 speed / latency N/A / N/A input / output No data | Mercury 2 speed / latency N/A / N/A input / output No data |
Weighted outcome: Tie. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputImage inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
