NVIDIA: Nemotron 3 Ultra (free)
About NVIDIA: Nemotron 3 Ultra (free)
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...
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Anthropic: Claude Fable Latest
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This model always redirects to the latest model in the Claude Fable family..
NVIDIA: Nemotron 3 Ultra
nvidia
NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE).
Anthropic: Claude Opus 4.8 (Fast)
anthropic
Fast-mode variant of [Opus 4.8](/anthropic/claude-opus-4.8) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 4.8. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode.
Anthropic: Claude Opus 4.8
anthropic
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family.