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Nemotron Super 49B vs Claude Fable 5.1

At a glance

NVIDIA's mid-size Nemotron model based on Llama 3.3 at 49B scale.

131K ctx$0.40/$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
Cheaper98%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Specs
131K
Context
16K
Max output
Oct 2025
Released
1M
Context
128K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input96%$0.40/M tokens
Output99%$0.40/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 Super 49BGo to model
Chat with Claude Fable 5.1Go to model
Frequently Asked Questions: Nemotron Super 49B vs Claude Fable 5.1▼

Which is better, Nemotron Super 49B or Claude Fable 5.1?

▼

Both Nemotron Super 49B 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 Super 49B or Claude Fable 5.1?

▼

Nemotron Super 49B has a lower blended cost. Nemotron Super 49B: $0.40 input / $0.40 output. Claude Fable 5.1: $10.00 input / $50.00 output.

Which has a larger context window, Nemotron Super 49B or Claude Fable 5.1?

▼

Claude Fable 5.1 has a larger context window: Nemotron Super 49B supports 131K tokens vs Claude Fable 5.1 at 1M tokens.

Do both Nemotron Super 49B and Claude Fable 5.1 support vision?

▼

Claude Fable 5.1 supports vision/image input, but Nemotron Super 49B does not.

What are the key differences between Nemotron Super 49B and Claude Fable 5.1?

▼

Key differences: Nemotron Super 49B is significantly cheaper; only Claude Fable 5.1 supports vision input. 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 Super 49B and Claude Fable 5.1 for free on idapt.app to see which performs better for your specific needs.

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