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Claude Fable Latest vs Nemotron 3 Ultra

Detailed technical comparison between Claude Fable Latest (Anthropic) and Nemotron 3 Ultra (Nvidia). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

Claude Fable Latest: 0 WinsvsNemotron 3 Ultra: 6 Wins
Context Leader

Claude Fable Latest

1,000,000 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

Nemotron 3 Ultra

$0.60 / MTok
Anthropicactive

Claude Fable Latest

This model always redirects to the latest model in the Claude Fable family.

View Claude Fable Latest Full Specs →
Nvidiaactive

Nemotron 3 Ultra

NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...

View Nemotron 3 Ultra Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationClaude Fable LatestNemotron 3 Ultra
ProviderAnthropicNvidia
Context Window1,000,000 tokens🏆512,288 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitybetabeta
API AvailableYesYes
Released Date2026-06-092026-06-04

API Pricing Comparison

Input Price per Million Tokens

Claude Fable Latest

$10.00

Nemotron 3 Ultra

$0.60

Output Price per Million Tokens

Claude Fable Latest

$50.00

Nemotron 3 Ultra

$3.60

💡 Cost Ratio: Nemotron 3 Ultra is 16.7x cheaper per input token than Claude Fable Latest.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

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Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
78.8%vs87.8%+9.0% Nemotron 3 Ultra
Claude Fable Latest
Nemotron 3 Ultra 🏆
HumanEvalPython coding & logic synthesis
77.0%vs87.0%+10.0% Nemotron 3 Ultra
Claude Fable Latest
Nemotron 3 Ultra 🏆
MATHComplex mathematical problem solving
54.2%vs68.2%+14.0% Nemotron 3 Ultra
Claude Fable Latest
Nemotron 3 Ultra 🏆
GPQAGraduate-level expert reasoning
39.6%vs49.6%+10.0% Nemotron 3 Ultra
Claude Fable Latest
Nemotron 3 Ultra 🏆
HellaSwagCommonsense reasoning and inference
81.8%vs85.4%+3.6% Nemotron 3 Ultra
Claude Fable Latest
Nemotron 3 Ultra 🏆
MT-BenchMulti-turn conversation flow quality
8.4%vs9.1%+0.7% Nemotron 3 Ultra
Claude Fable Latest
Nemotron 3 Ultra 🏆

Claude Fable Latest Quirks & Gotchas

No developer gotchas reported.

Nemotron 3 Ultra Quirks & Gotchas

No developer gotchas reported.

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