Pricing for legacy models

Caution: The Pathways Language Models (PaLM) are deprecated. As of October 9, 2024, you can no longer access these models from new Google Cloud projects, and access for all projects will be removed on April 9, 2025. If you're a new user, we recommend using Gemini. If you're an existing PaLM user, see Migrate from PaLM 2 to Gemini.

Prices are listed in US Dollars (USD).

This page covers pricing for legacy models on Vertex AI. The models in a legacy model family are no longer updated with new stable versions. For details, see Legacy model information.

PaLM and Codey models

Generative AI on Vertex AI charges by every 1,000 characters of input (prompt) and every 1,000 characters of output (response). Characters are counted by UTF-8 code points and whitespace is excluded from the count. During the Preview stage, charges are 100% discounted. Prediction requests that lead to filtered responses are charged for the input only. At the end of each billing cycle, fractions of one cent ($0.01) are rounded to one cent.

Note: Prediction pricing for tuned model endpoints are the same as for the base foundation model.

Model	Type	Region	Price per 1,000 characters
PaLM 2 for Text (Text Bison)	Input	Global	Online requests: $0.00025 Batch requests: $0.00020
	Output	Global	Online requests: $0.0005 Batch requests: $0.0004
	Supervised Tuning	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing
	Reinforcement Learning from Human Feedback	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing
PaLM 2 for Text 32k (Text Bison 32k)	Input	Global	Online requests: $0.00025 Batch requests: $0.00020
	Output	Global	Online requests: $0.0005 Batch requests: $0.0004
	Supervised Tuning	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing
PaLM 2 for Text (Text Unicorn)	Input	Global	Online requests: $0.0025 Batch requests: $0.0020
	Output	Global	Online requests: $0.0075 Batch requests: $0.0060
PaLM 2 for Chat (Chat Bison)	Input	Global	Online requests: $0.00025
	Output	Global	Online requests: $0.0005
	Supervised Tuning	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing
	Reinforcement Learning from Human Feedback	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing
PaLM 2 for Chat 32k (Chat Bison 32k)	Input	Global	Online requests: $0.00025^*
	Output	Global	Online requests: $0.0005^*
	Supervised Tuning	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing
Codey for Code Generation	Input	Global	Online requests: $0.00025 Batch requests: $0.00020
	Output	Global	Online requests: $0.0005 Batch requests: $0.0004
	Supervised Tuning	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing
Codey for Code Generation 32k	Input	Global	Online requests: $0.00025
	Output	Global	Online requests: $0.0005
	Supervised Tuning	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing
Codey for Code Chat	Input	Global	Online requests: $0.00025
	Output	Global	Online requests: $0.0005
	Supervised Tuning	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing
Codey for Code Chat 32k	Input	Global	Online requests: $0.00025
	Output	Global	Online requests: $0.0005
	Supervised Tuning	us-central1 europe-west4	$ per node hour Vertex AI custom training pricing

Prices are listed in US Dollars (USD).

Example cost calculation

If a user sends five separate requests to the PaLM Text Bison model, and each request has a 200-character input and 400-character output, the total charge is calculated as follows:

Input cost:
200 input characters x 5 prompts = 1,000 total input characters;
1,000 total input characters x ($0.00025 / 1000) = $0.00025 input cost.

Output cost:
400 output characters x 5 prompts = 2,000 total output characters;
2,000 total output characters x ($0.0005 / 1000) = $0.001 output cost.

Total cost:
$0.00025 input cost + $0.001 output cost = $0.00125 total cost.