Claude Fable 5.1 vs Nemotron 3 Nano Omni 30B-A3B

Claude Fable 5.1 leads on the Visual Intelligence Index by 15.9 points, and Claude Fable 5.1 scores higher on 7 of the 7 benchmarks where the two differ.

Model

Compared with

AnthropicClaude Fable 5.176.2%Rank #3 NVIDIANemotron 3 Nano Omni 30B-A3B60.3%Rank #8

At a glance

Measure	Claude Fable 5.1	Nemotron 3 Nano Omni 30B-A3B
Visual Intelligence Index	76.2%	60.3%
Rank	#3 of 9	#8 of 9
Cost per taskMean over the benchmarks, at list price.	$0.517	—
Latency per taskEach benchmark's median, averaged.	9.0s	14.7s
Tokens per task	51,151	35,341
Input / 1M tokens	$10.00	—
Output / 1M tokens	$50.00	—
Context window	1M	262K
Availability	Proprietary	Open weights

How cost and latency are measured

Capabilities

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

Capability	Claude Fable 5.1	Nemotron 3 Nano Omni 30B-A3B	Lead
Perception	75.3%	61.0%	+14.4
Spatial Reasoning	77.0%	62.0%	+15.0
Temporal Reasoning	76.4%	60.2%	+16.2
Action / Event Understanding	74.0%	55.6%	+18.4
Causal Reasoning	78.7%	63.6%	+15.2
Information Retrieval	74.7%	57.1%	+17.6

Benchmarks

Benchmark	Claude Fable 5.1	Nemotron 3 Nano Omni 30B-A3B	Lead
Video-MME v2	66.2%	35.0%	+31.2
LVBench	75.0%	54.2%	+20.7
Perception Test	77.3%	70.3%	+7.0
NExT-QA	86.8%	81.2%	+5.6
Q-Bench Video	71.0%	64.9%	+6.1
EgoSchema	80.4%	65.8%	+14.6
UCF101-AD	60.6%	31.0%	+29.6

Usability

Claude Fable 5.1

3.0/ 5

Reachable1.0: There is an endpoint you can call without hosting anything.
First-party API — supported
Third-party API — supported
Portable0.0: You can run it yourself, and are not tied to one vendor.
Open weights — not supported
Self-hostable — not supported
Multimodal input0.0: It takes the footage directly, rather than frames you extracted.
Video ingestion — not supported
Audio — not supported
Programmable1.0: Output you can parse, and tools it can call on its own.
Structured output — supported
Tool calling — supported
Operable1.0: Usable interactively and in bulk, not only one call at a time.
Streaming — supported
Batch API — supported

Nemotron 3 Nano Omni 30B-A3B

5.0/ 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 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
Operable1.0: Usable interactively and in bulk, not only one call at a time.
Streaming — supported
Batch API — supported