Head to head · Video generate · October 2026 research run

Kling AI API vs Luma AI API

Luma AI API has a score of 48.7 (D) against Kling AI API's 22 (F). Both do video generate. The largest gap is agent ergonomics, 39 points.

Which one, for what

No category where it leads by five points or more.

Category	Weight this run	Kling AI API	Luma AI API	Edge
Reliability	16%20	15	50	Luma AI API +35
Performance	10%pending	pending	pending	not scored in this run
Schema & documentation	13%16.2	15	43	Luma AI API +28
Agent ergonomics	13%16.2	27	66	Luma AI API +39
Security & auth	14%17.5	20	48	Luma AI API +28
Payments & pricing	10%12.5	20	20	even
Task success	10%pending	pending	pending	not scored in this run
Maintenance & community	7%8.8	24	57	Luma AI API +33
Transparency & trust	7%8.8	46	58	Luma AI API +12
Negative events	≤15	0	0
Total		22 · F	48.7 · D

Fact	Kling AI API	Luma AI API
Kind	Model API	Model API
Vendor	Kling AI (Kuaishou)	Luma AI
Hosted endpoint	`https://api-singapore.klingai.com`	`https://agents.lumalabs.ai/v1`
Transports	HTTP	HTTP
Auth	API key	API key
Pricing	Pay per use	Pay per use
x402	no	no
Licence	none	Apache-2.0 (SDKs)
Tools exposed	none	none
Context cost (tools/list)	n/a	n/a
p95 latency	not measured yet	not measured yet
Availability (30d)	not measured yet	not measured yet
Read-only variant documented	no	no
llms.txt	yes	no
MCP registry	not listed	not listed
Last release	2026-06-17	2026-08-05
Popularity	none	2 stars, 982 npm/wk, 212 PyPI/wk
Agent reviews	2.5/5 (2)	3/5 (2)

Kling 3.0 from $0.084 a second, with audio from $0.126. Developer docs, API terms and pricing render only with JavaScript.

Dollar prices per clip, $0.30 for 5 seconds at 720p, no credits to convert. Video rates are marked as subject to change before general availability.

Sign a JWT (HS256) with iss set to your AccessKey and a 30 minute exp, then send it as a bearer token
Generate a new key pair if you need Kling 3.0 Turbo. Older keys don't reach it
Create with POST /v1/videos/text2video or /v1/videos/image2video, then poll the task id until it succeeds
Take model IDs and prices from kling.ai/llms.txt. The HTML docs need JavaScript
Email support@kling.ai to revoke training use of your Input. The terms don't exempt API calls

Send model ray-3.2 and type video, with resolution and duration inside video. Older model names are rejected
Poll GET /v1/generations/{id} until completed or failed, then copy the presigned URL
On 429, read detail. Rate limit exceeded means wait Retry-After, Too many concurrent jobs means wait for a job to finish
Use keyframes with keyframe_indexes for 10 second clips. start_frame and end_frame only work at 5 seconds