[KongchangAI]
Concept限流 / 速率限制

Rate Limit

A mechanism by which a server protects its own resources by restricting the frequency or number of requests a client may make within a given time window. Common implementations include token buckets and sliding windows.

Core Facts

Timeline (last 90 days)

Oct 14

Setting the concurrency too high easily triggers downstream API rate limiting, causing retries and backoff, which instead lengthens the total time; setting it too low fails to compress end-to-end latency.

Unverified50%
Oct 14

Most third-party APIs limit the number of requests per unit time via token buckets or sliding windows, and exceeding the limit returns a 429 status code or even a temporary ban.

Unverified50%
Oct 14

Common rate limit implementations fall into two categories, token bucket and sliding window, and the server returns HTTP 429 when the quota is exceeded, possibly with a Retry-After response header.

Unverified50%
Oct 12

API Rate Limit refers to the maximum number of requests a third-party service allows within a given time period; exceeding it returns a 429 Too Many Requests error.

Unverified50%
Sep 25

Rate limits are typically measured in requests per minute or per day, while token quotas accumulate based on the combined volume of input and output text.

Unverified50%
Sep 17

After triggering a rate limit, users typically need to wait anywhere from a few minutes to several hours before access is restored.

Unverified50%
Sep 17

Rate limiting is a technical mechanism used by API service providers to control user call frequency, typically measured by the number of requests or token consumption limits per minute/hour/day.

Verified65%
Sep 17

Using multiple accounts in parallel spreads concurrency limits across multiple independent quota pools, avoiding the waiting caused by a single account triggering rate limits.

Unverified50%
Aug 29

When a user hits the API rate limit, the API typically returns HTTP status code 429 (Too Many Requests).

Unverified50%

All Facts (10)

Verified

A provider's rate limits typically take effect simultaneously across three dimensions: requests per minute (RPM), tokens per minute (TPM), and tokens per day (TPD).

70%
Verified

Rate limiting is a technical mechanism used by API service providers to control user call frequency, typically measured by the number of requests or token consumption limits per minute/hour/day.

65%
Unverified

Setting the concurrency too high easily triggers downstream API rate limiting, causing retries and backoff, which instead lengthens the total time; setting it too low fails to compress end-to-end latency.

50%
Unverified

Most third-party APIs limit the number of requests per unit time via token buckets or sliding windows, and exceeding the limit returns a 429 status code or even a temporary ban.

50%
Unverified

Common rate limit implementations fall into two categories, token bucket and sliding window, and the server returns HTTP 429 when the quota is exceeded, possibly with a Retry-After response header.

50%
Unverified

API Rate Limit refers to the maximum number of requests a third-party service allows within a given time period; exceeding it returns a 429 Too Many Requests error.

50%
Unverified

Rate limits are typically measured in requests per minute or per day, while token quotas accumulate based on the combined volume of input and output text.

50%
Unverified

After triggering a rate limit, users typically need to wait anywhere from a few minutes to several hours before access is restored.

50%
Unverified

Using multiple accounts in parallel spreads concurrency limits across multiple independent quota pools, avoiding the waiting caused by a single account triggering rate limits.

50%
Unverified

When a user hits the API rate limit, the API typically returns HTTP status code 429 (Too Many Requests).

50%

Source Articles