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Nemotron 3.5 Super VL vs Claude Fable 5.1

At a glance

NVIDIA's open multimodal mixture-of-experts model, with 12B active parameters out of 120B total.

262K ctx$0.10/$0.40 per M

Anthropic's upgraded Mythos-class flagship, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work.

1M ctx$10.00/$50.00 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper99%
Reasoning & Knowledge
Expert-Level—Factual Recall—
Math
Competition Math—
Agentic
Novel Reasoning—
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Reasoning & Knowledge
Expert-Level46.5%Factual Recall70.8%
Math
Competition Math100.0%
Agentic
Novel Reasoning90.0%
Specs
262K
Context
236K
Max output
Oct 2026
Released
1M
Context
128K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input99%$0.10/M tokens
Output99%$0.40/M tokens
Cache read68%$0.08/M tokens
Live pricing, shown before you run
Input$10.00/M tokens
Output$50.00/M tokens
Cache read$0.25/M tokens
Cache write$12.50/M tokens
Web search$0.01/search
Chat with Nemotron 3.5 Super VLGo to model
Chat with Claude Fable 5.1Go to model
Frequently Asked Questions: Nemotron 3.5 Super VL vs Claude Fable 5.1▼

Which is better, Nemotron 3.5 Super VL or Claude Fable 5.1?

▼

Both Nemotron 3.5 Super VL and Claude Fable 5.1 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Nemotron 3.5 Super VL or Claude Fable 5.1?

▼

Nemotron 3.5 Super VL has a lower blended cost. Nemotron 3.5 Super VL: $0.10 input / $0.40 output. Claude Fable 5.1: $10.00 input / $50.00 output.

Which has a larger context window, Nemotron 3.5 Super VL or Claude Fable 5.1?

▼

Claude Fable 5.1 has a larger context window: Nemotron 3.5 Super VL supports 262K tokens vs Claude Fable 5.1 at 1M tokens.

Do both Nemotron 3.5 Super VL and Claude Fable 5.1 support vision?

▼

Yes, both Nemotron 3.5 Super VL and Claude Fable 5.1 support vision/image input.

What are the key differences between Nemotron 3.5 Super VL and Claude Fable 5.1?

▼

Key differences: Nemotron 3.5 Super VL is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Nemotron 3.5 Super VL and Claude Fable 5.1 for free on idapt.app to see which performs better for your specific needs.

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