GR
Google Research
Language model · United States ·Dec 2021

LongT5

Language Open (Restricted)
3B
Parameters

About LongT5

LongT5 is an AI model developed by Google Research, in the language category, released in 2021, made available as an open-weights model with 3B params.

On this page you'll find LongT5's full specifications. Review provider pricing and benchmark scores below, or compare LongT5 head-to-head with other language models.

→ More models by Google Research → All language models → AI benchmarks leaderboard

Links

Announcement ↗

Run LongT5 locally — what to buy

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Sized to what LongT5 actually needs (~8k context at Q4), not to the biggest GPU: Good = cheapest that runs it, Better = best value, Best = most headroom. Speed is a hardware estimate; anything past ~120 tok/s is shown as instant.

Best
Intel Arc B580 12GB
Consumer GPU · ~$249
~120 tok/s
Q4 · fits full context · up to 8k ctx
Runs with: ExLlamaV2, KoboldCpp, LM Studio
See full estimate →

Software support

·ExLlamaV2 ·KoboldCpp ·LM Studio ·MLX ·Ollama ·SGLang ·TensorRT-LLM ·llama.cpp ·vLLM ?KTransformers ?text-generation-webui

✓ measured · · compatible · — not supported. Informational only — speed is hardware-based.

Consumer GPU
58–120+ tok/s
33 options →
Apple
58–120+ tok/s
18 options →
Datacenter GPU
120+ tok/s
13 options →

Community

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Frequently asked questions

What is LongT5? ▶

LongT5 is an AI model developed by Google Research, in the language category, released in 2021. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.

Who created LongT5? ▶

LongT5 was developed by Google Research and released in 2021.

Is LongT5 open source or proprietary? ▶

LongT5 ships as an open-weights model: you can download and self-host the weights, though the licence may place some restrictions on use.

How much does LongT5 cost? ▶

Pricing for LongT5 depends on the provider. See the providers table on this page for the latest API rates.

How does LongT5 perform on benchmarks? ▶

Benchmark scores for LongT5 are listed on this page as they are published. You can compare it head-to-head with other models on the GenAIList compare tool.

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