Data points: 70
Model compare
The readout for DeepSeek R1 Distill Qwen 1.5B and DeepSeek V4 Flash, before the detailed comparison sheet.
Weighted outcome: DeepSeek V4 Flash. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
DeepSeek V4 Flash
DeepSeek V4 Flash has the higher weighted result; Model A / B score 34.7 to 65.3.
Evidence depth
70 data points
Includes 4 benchmark rows, 1 audit samples, and 9 provider examples.
Selection signal
Start with DeepSeek V4 Flash
The charts below split 14 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 DeepSeek R1 Distill Qwen 1.5B and DeepSeek V4 Flash: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | DeepSeek R1 Distill Qwen 1.5B | DeepSeek V4 Flash |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 34.7 pts | 65.3 pts |
| Benchmark category leads | 1 categories | 2 categories |
| Operational advantages | Average speed, First-token latency | Cheapest input price, Free providers, Provider coverage |
| Context window | No data | 1.0M tokens |
| Max output | No data | 65.5K tokens |
| Modalities | No data | Input Text Output Text |
| Features |
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 | DeepSeek R1 Distill Qwen 1.5B | DeepSeek V4 Flash |
|---|---|---|
| Developer | DeepSeek | DeepSeek |
| Released | No data | Apr 2026 |
| Parameters | No data | No data |
| Tokenizer | No data | DeepSeek |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | deepseek/deepseek-v4-flash |
| References | No data | No data |
This report only uses LMSpeed data for DeepSeek R1 Distill Qwen 1.5B and DeepSeek V4 Flash: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
DeepSeek R1 Distill Qwen 1.5B
DeepSeek R1 Distill Qwen 1.5B is stronger in benchmark categories (Math) and operational dimensions (Average speed, First-token latency).
DeepSeek V4 Flash
DeepSeek V4 Flash is stronger in benchmark categories (Coding, Reasoning) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
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
DeepSeek R1 Distill Qwen 1.5B
33.8
Avg. score
DeepSeek V4 Flash
45.8
DeepSeek V4 Flash
DeepSeek V4 Flash leads by 18.3
DeepSeek V4 Flash leads by 21.7
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
DeepSeek R1 Distill Qwen 1.5B
26.9%
Rank #125/125 · confidence 4
DeepSeek V4 Flash
winner86.2%
Rank #15/125 · confidence 2 · eval date 2026-04-24
DeepSeek R1 Distill Qwen 1.5B
9.8%
Rank #187/187 · confidence 4
DeepSeek V4 Flash
winner86.7%
Rank #35/187 · confidence 4
DeepSeek R1 Distill Qwen 1.5B
3.3%
Rank #179/186 · confidence 4
DeepSeek V4 Flash
winner27.8%
Rank #35/186 · confidence 4
DeepSeek R1 Distill Qwen 1.5B
6.6%
Rank #184/184 · confidence 4
DeepSeek V4 Flash
winner42.0%
Rank #51/184 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek R1 Distill Qwen 1.5B | DeepSeek V4 Flash |
|---|---|---|
Winner: DeepSeek V4 Flash | DeepSeek R1 Distill Qwen 1.5B deepseek-r1-distill-qwen-1.5b No audit yet | DeepSeek V4 Flash deepseek-v4-flash Audit score 83 807280100 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | DeepSeek R1 Distill Qwen 1.5B | DeepSeek V4 Flash |
|---|---|---|
25 tests | DeepSeek R1 Distill Qwen 1.5B speed / latency N/A / N/A input / output No data | DeepSeek V4 Flash speed / latency 45 tok/s / 9731ms input / output No data |
25 tests | DeepSeek R1 Distill Qwen 1.5B speed / latency 74 tok/s / 6130ms input / output No data | DeepSeek V4 Flash speed / latency 108 tok/s / 3324ms input / output No data |
20 tests | DeepSeek R1 Distill Qwen 1.5B speed / latency N/A / N/A input / output No data | DeepSeek V4 Flash speed / latency 83 tok/s / 5114ms input / output No data |
10 tests | DeepSeek R1 Distill Qwen 1.5B speed / latency N/A / N/A input / output No data | DeepSeek V4 Flash speed / latency 86 tok/s / 4077ms input / output No data |
10 tests | DeepSeek R1 Distill Qwen 1.5B speed / latency N/A / N/A input / output No data | DeepSeek V4 Flash speed / latency 143 tok/s / 1761ms input / output No data |
DeepSeek R1 Distill Qwen 1.5B DeepSeek-R1-Distill-Qwen-1.5B speed / latency No data input / output $0.010/request | DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.500/M | |
DeepSeek R1 Distill Qwen 1.5B DeepSeek-R1-Distill-Qwen-1.5B speed / latency No data input / output $0.010/request | DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.500/M | |
DeepSeek R1 Distill Qwen 1.5B deepseek-r1-distill-qwen-1.5b speed / latency No data input / output $0.038/M/$0.153/M | DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $1.27/M | |
DeepSeek R1 Distill Qwen 1.5B deepseek-r1-distill-qwen-1.5b speed / latency No data input / output $6.16/M/$12.33/M | DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.137/M |
Weighted outcome: DeepSeek V4 Flash. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
| None listed |
Text inputText outputTool callingStructured outputsJSON modeReasoning |
DeepSeek V4 Flash
DeepSeek R1 Distill Qwen 1.5B leads by 8.8
No data
No data
DeepSeek V4 Flash
