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Claude Fable 5.1 vs Nemotron Super 49B

At a glance

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

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

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

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

▼

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

▼

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

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

▼

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

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

▼

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

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

▼

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 Claude Fable 5.1 and Nemotron Super 49B for free on idapt.app to see which performs better for your specific needs.

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