GB
Google Brain
Language model · United States ·Mar 2023

Flan UL2

Language Open (Restricted)
19.5B
Parameters

About Flan UL2

Flan UL2 is an AI model developed by Google Brain, in the language category, released in 2023, made available as an open-weights model with 19.5B params.

On this page you'll find Flan UL2's full specifications. Review provider pricing and benchmark scores below, or compare Flan UL2 head-to-head with other language models.

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

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Run Flan UL2 locally — what to buy

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Sized to what Flan UL2 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.

Good
Intel Arc A770 16GB
Consumer GPU · ~$329
~36.9 tok/s
Q4 · fits full context · up to 8k ctx
Runs with: ExLlamaV2, KoboldCpp, LM Studio
See full estimate →
Better
NVIDIA GeForce RTX 5070 Ti
Consumer GPU · ~$749
~71.4 tok/s
Q4 · fits full context · up to 8k ctx
Runs with: ExLlamaV2, KoboldCpp, LM Studio
See full estimate →
Best
NVIDIA GeForce RTX 5090
Consumer GPU · ~$1,999
~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
14.8–120+ tok/s
22 options →
Apple
22.5–60.1 tok/s
17 options →
Datacenter GPU
60.9–120+ tok/s
13 options →

Community

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Frequently asked questions

What is Flan UL2? ▶

Flan UL2 is an AI model developed by Google Brain, in the language category, released in 2023. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.

Who created Flan UL2? ▶

Flan UL2 was developed by Google Brain and released in 2023.

Is Flan UL2 open source or proprietary? ▶

Flan UL2 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 Flan UL2 cost? ▶

Pricing for Flan UL2 depends on the provider. See the providers table on this page for the latest API rates.

How does Flan UL2 perform on benchmarks? ▶

Benchmark scores for Flan UL2 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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