Kimi K3 vs Qwen3.8-27B

Kimi K3 leads on the Visual Intelligence Index by 3.4 points, and Kimi K3 scores higher on 4 of the 7 benchmarks where the two differ.

Model

Compared with

At a glance

Measure	Kimi K3	Qwen3.8-27B
Visual Intelligence Index	71.9%	68.5%
Rank	#5 of 9	#6 of 9
Cost per taskMean over the benchmarks, at list price.	$0.114	—
Latency per taskEach benchmark's median, averaged.	29.2s	32.0s
Tokens per task	31,619	25,009
Input / 1M tokens	$3.00	—
Output / 1M tokens	$15.00	—
Context window	1.05M	256K
Availability	Open weights	Open weights

Each capability index is a weighted mean of the benchmarks that contribute to the capability.

Capability	Kimi K3	Qwen3.8-27B	Lead
Perception	71.5%	67.8%	+3.6
Spatial Reasoning	73.7%	68.6%	+5.1
Temporal Reasoning	72.4%	68.4%	+4.0
Action / Event Understanding	66.8%	65.2%	+1.7
Causal Reasoning	75.2%	72.3%	+2.9
Information Retrieval	70.1%	67.0%	+3.2

Benchmark	Kimi K3	Qwen3.8-27B	Lead
Video-MME v2	55.2%	50.5%	+4.6
LVBench	66.8%	64.6%	+2.2
Perception Test	82.4%	72.3%	+10.1
NExT-QA	86.3%	82.2%	+4.1
Q-Bench Video	67.5%	67.9%	−0.3
EgoSchema	78.6%	79.1%	−0.5
UCF101-AD	39.4%	45.5%	−6.1

4.0/ 5

Reachable1.0: There is an endpoint you can call without hosting anything.
First-party API — supported
Third-party API — supported
Portable1.0: You can run it yourself, and are not tied to one vendor.
Open weights — supported
Self-hostable — supported
Multimodal input0.5: It takes the footage directly, rather than frames you extracted.
Video ingestion — supported
Audio — not supported
Programmable1.0: Output you can parse, and tools it can call on its own.
Structured output — supported
Tool calling — supported
Operable0.5: Usable interactively and in bulk, not only one call at a time.
Streaming — supported
Batch API — not supported

4.5/ 5

Reachable1.0: There is an endpoint you can call without hosting anything.
First-party API — supported
Third-party API — supported
Portable1.0: You can run it yourself, and are not tied to one vendor.
Open weights — supported
Self-hostable — supported
Multimodal input1.0: It takes the footage directly, rather than frames you extracted.
Video ingestion — supported
Audio — supported
Programmable1.0: Output you can parse, and tools it can call on its own.
Structured output — supported
Tool calling — supported
Operable0.5: Usable interactively and in bulk, not only one call at a time.
Streaming — supported
Batch API — not supported