flask benchmark results
flask 3.1 is a python web framework. At concurrency 64 it serves 738 requests per second with a P50 latency of 99.85 ms, ranking 376 of 383 overall and 42 of 46 among python frameworks.
- Language: python 3.14
- Framework version: 3.1
- Website: https://www.palletsprojects.com/p/flask/
- Compare flask →
Throughput, latency & reliability
| Metric | Concurrency 64 | Concurrency 256 | Concurrency 512 |
|---|---|---|---|
| Requests / second | 738 | 1 210 | 859 |
| P50 latency | 99.85 ms | 102.53 ms | 2376.91 ms |
| P75 latency | 130.94 ms | 185.38 ms | 2841.07 ms |
| P90 latency | 157.69 ms | 315.30 ms | 3031.30 ms |
| P99 latency | 190.75 ms | 973.27 ms | 5820.25 ms |
| P99.999 latency | 215.95 ms | 2727.13 ms | 6206.98 ms |
| Average latency | 94.84 ms | 159.71 ms | 2284.58 ms |
| Minimum latency | 14.04 ms | 0.40 ms | 44.52 ms |
| Standard deviation | 48.12 ms | 229.85 ms | 1204.36 ms |
| Total requests | 11 077 | 18 151 | 12 886 |
| Bytes received | 1.61 MB | 2.64 MB | 1.87 MB |
| HTTP errors | 0 | 0 | 0 |
| Request timeouts | 0 | 0 | 63 |
| Socket connection errors | 13 836 | 10 489 | 14 494 |
| Socket read errors | 0 | 0 | 0 |
| Socket write errors | 0 | 0 | 0 |
Position in this benchmark
| Concurrency | Overall | Among python frameworks |
|---|---|---|
| 64 | 376 of 383 | 42 of 46 |
| 256 | 374 of 383 | 41 of 46 |
| 512 | 377 of 383 | 44 of 46 |
Badge for your README
Show the rank of flask in your README. The image is updated together with the results.
[](https://web-frameworks-benchmark.vercel.app/frameworks/python/flask/)
[](https://web-frameworks-benchmark.vercel.app/frameworks/python/flask/)Explore python frameworks
| # | Framework | Requests / second | P50 latency | P99 latency | HTTP errors |
|---|---|---|---|---|---|
| 1 | peregrine-wsgi 1.1 | 191 025 | 0.30 ms | 0.85 ms | 0 |
| 2 | weft-wsgi 0.1 | 153 346 | 0.41 ms | 0.52 ms | 0 |
| 3 | fastpysgi-wsgi 0.6 | 147 137 | 0.46 ms | 0.58 ms | 0 |
| 4 | peregrine-asgi 1.1 | 118 540 | 0.55 ms | 0.68 ms | 0 |
| 5 | weft-asgi 0.1 | 118 218 | 0.53 ms | 0.79 ms | 0 |
| 6 | oxapy 0.11 | 85 921 | 0.73 ms | 1.34 ms | 0 |
| 7 | peregrine-blacksheep 2.6 | 74 401 | 0.95 ms | 1.14 ms | 0 |
| 8 | emmett 2.7 | 47 667 | 1.27 ms | 2.98 ms | 0 |
| 9 | asgineer 0.9 | 43 752 | 1.46 ms | 2.09 ms | 0 |
| 10 | mq-bridge-py 0.2 | 41 435 | 1.63 ms | 1.86 ms | 0 |