AI Latency Tracker

· 45 providers · 4 regions

As of September 21, 2026, the fastest-responding AI inference API by edge latency (time-to-first-byte) is fireworks at 22 ms p50, measured from Asia (Tokyo) (100% uptime, n=287). Rankings differ by region — see the table below.

Independent, provider-neutral latency and uptime of AI inference APIs (OpenAI, Anthropic, Google, Mistral, DeepSeek, xAI, OpenRouter and more), measured directly from multiple regions and updated automatically. How this is measured →

Is any AI API down right now?

3 confirmed outage(s) in the last 24 hours: featherless, Google, sambanova

45 providers · probed every 5 minutes from 4 regions · last probe Sep 21, 14:43 UTC

None of the 10 providers with a machine-readable status page reports an open incident (checked Sep 21, 14:17 UTC).

all probes succeededsome probes failedhalf or more failedno data

Probe outcomes per provider, hour by hour, last 72 hours (all regions combined)Sep 19Sep 20Sep 21nowSep 18, 15:00 – Sep 20, 01:00 UTC: all 1680 probes succeededSep 20, 02:00 UTC: 1 of 48 probes failed — Asia (Tokyo) (http 520)Sep 20, 03:00 – Sep 21, 14:00 UTC: all 1719 probes succeededSep 18, 15:00 – Sep 21, 14:00 UTC: all 3447 probes succeededSep 18, 15:00 – Sep 21, 14:00 UTC: all 3447 probes succeededSep 18, 15:00 – Sep 20, 08:00 UTC: all 2016 probes succeededSep 20, 09:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 20, 10:00 – Sep 21, 14:00 UTC: all 1383 probes succeededSep 18, 15:00 – Sep 20, 08:00 UTC: all 2016 probes succeededSep 20, 09:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 20, 10:00 – Sep 21, 14:00 UTC: all 1383 probes succeededSep 18, 15:00 – Sep 21, 14:00 UTC: all 3447 probes succeededSep 18, 15:00 – Sep 20, 08:00 UTC: all 2016 probes succeededSep 20, 09:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 20, 10:00 – Sep 21, 14:00 UTC: all 1383 probes succeededSep 18, 15:00 – Sep 19, 15:00 UTC: all 1200 probes succeededSep 19, 16:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 19, 17:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 19, 18:00 – Sep 20, 08:00 UTC: all 720 probes succeededSep 20, 09:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 20, 10:00 – Sep 21, 14:00 UTC: all 1383 probes succeededSep 18, 15:00 UTC: all 48 probes succeededSep 18, 16:00 UTC: 2 of 48 probes failed — Europe (Germany) (timeout); South America (São Paulo) (timeout)Sep 18, 17:00 UTC: 1 of 48 probes failed — Asia (Tokyo) (timeout)Sep 18, 18:00 – Sep 18, 19:00 UTC: all 96 probes succeededSep 18, 20:00 UTC: 1 of 48 probes failed — Europe (Germany) (timeout)Sep 18, 21:00 – Sep 19, 09:00 UTC: all 624 probes succeededSep 19, 10:00 UTC: 1 of 48 probes failed — Europe (Germany) (timeout)Sep 19, 11:00 – Sep 19, 12:00 UTC: all 96 probes succeededSep 19, 13:00 UTC: 1 of 48 probes failed — Europe (Germany) (timeout)Sep 19, 14:00 – Sep 20, 09:00 UTC: all 960 probes succeededSep 20, 10:00 UTC: 1 of 48 probes failed — US (Central) (timeout)Sep 20, 11:00 – Sep 20, 15:00 UTC: all 240 probes succeededSep 20, 16:00 UTC: 1 of 48 probes failed — Europe (Germany) (timeout)Sep 20, 17:00 UTC: 2 of 48 probes failed — South America (São Paulo) (timeout); US (Central) (timeout)Sep 20, 18:00 – Sep 21, 00:00 UTC: all 336 probes succeededSep 21, 01:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 21, 02:00 – Sep 21, 08:00 UTC: all 336 probes succeededSep 21, 09:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 21, 10:00 UTC: all 48 probes succeededSep 21, 11:00 UTC: 1 of 48 probes failed — Europe (Germany) (timeout)Sep 21, 12:00 – Sep 21, 14:00 UTC: all 135 probes succeededSep 18, 15:00 – Sep 19, 16:00 UTC: all 1248 probes succeededSep 19, 17:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 19, 18:00 – Sep 20, 08:00 UTC: all 720 probes succeededSep 20, 09:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 20, 10:00 – Sep 21, 14:00 UTC: all 1383 probes succeededSep 18, 15:00 – Sep 21, 14:00 UTC: all 3447 probes succeededSep 18, 15:00 – Sep 20, 08:00 UTC: all 2016 probes succeededSep 20, 09:00 UTC: 1 of 48 probes failed — South America (São Paulo) (timeout)Sep 20, 10:00 – Sep 21, 14:00 UTC: all 1383 probes succeededSep 18, 15:00 – Sep 21, 00:00 UTC: all 2784 probes succeededSep 21, 01:00 UTC: 2 of 48 probes failed — Europe (Germany) (timeout); US (Central) (timeout)Sep 21, 02:00 UTC: 1 of 48 probes failed — US (Central) (timeout)Sep 21, 03:00 UTC: 6 of 48 probes failed — Asia (Tokyo) (timeout); Europe (Germany) (timeout); US (Central) (timeout)Sep 21, 04:00 UTC: 5 of 48 probes failed — Asia (Tokyo) (timeout); South America (São Paulo) (timeout); US (Central) (timeout)Sep 21, 05:00 UTC: 5 of 48 probes failed — Europe (Germany) (timeout); South America (São Paulo) (timeout); US (Central) (timeout)Sep 21, 06:00 UTC: 3 of 48 probes failed — Asia (Tokyo) (timeout); South America (São Paulo) (timeout); US (Central) (timeout)Sep 21, 07:00 UTC: all 48 probes succeededSep 21, 08:00 UTC: 2 of 48 probes failed — Europe (Germany) (timeout)Sep 21, 09:00 UTC: 4 of 48 probes failed — Asia (Tokyo) (timeout); South America (São Paulo) (timeout)Sep 21, 10:00 UTC: 5 of 48 probes failed — Asia (Tokyo) (timeout); Europe (Germany) (timeout); US (Central) (timeout)Sep 21, 11:00 UTC: 1 of 48 probes failed — US (Central) (timeout)Sep 21, 12:00 UTC: 2 of 48 probes failed — Asia (Tokyo) (timeout); South America (São Paulo) (timeout)Sep 21, 13:00 UTC: 1 of 48 probes failed — Europe (Germany) (timeout)Sep 21, 14:00 UTC: 2 of 39 probes failed — Europe (Germany) (timeout); US (Central) (timeout)
openaianthropicgooglemistraldeepseekxaigroqcerebrassambanovatogetherfireworksopenrouterfeatherless

Hour by hour for the last 72 hours, all regions combined; hover a cell for the count. Each provider page shows the same view per region. Full incident log →

Which AI API is fastest right now?

RegionFastest AI APIp50 TTFBUptime
Asia (Tokyo)fireworks22 ms100%
Europe (Germany)fireworks98 ms100%
South America (São Paulo)openrouter61 ms100%
US (Central)fireworks27 ms100%

Which AI APIs are fastest overall?

Composite score 0–100 (100 = as fast as the region leader), averaged across all 4 measured region(s). How it’s computed →

#ProviderSpeed Index
1fireworks81
2openrouter70
3google59
4meta-llama44
5baseten41
6inference-net38
7sambanova36
8mistral36
9cohere36
10nscale33
11cerebras33
12aleph-alpha32
13nebius32
14replicate31
15reka30

Full ranking — Europe (Germany)

Edge latency (time-to-first-byte), p50/p95, last 24h. Other regions: see the per-region pages below.

#Providerp50 TTFBp95UptimeSamples
1fireworks98 ms202 ms100%288
2nscale99 ms199 ms100%288
3openrouter99 ms201 ms100%288
4google99 ms205 ms100%288
5nebius100 ms203 ms100%288
6aleph-alpha100 ms301 ms100%288
7mistral100 ms294 ms100%288
8inference-net103 ms696 ms100%288
9meta-llama107 ms321 ms100%288
10baichuan182 ms270 ms99.3%288
11baseten198 ms298 ms100%288
12cerebras199 ms391 ms100%288
13perplexity199 ms314 ms100%288
14replicate200 ms400 ms100%288
15cohere200 ms303 ms100%288

How fast is each region?

How fast is a specific provider?

Which provider is faster than which?