Models

Choose a V4 model and understand its token pricing.

Omit model and modelParams to use GPT-6 Luna with High reasoning, or pass explicit settings when creating a run. EU uses the same task default through its regional provider route; Bedrock-only projects retain their compatible default. The following Browser Use-hosted models have published token pricing:

Model	API string	Input	Cache read	Output	BYOK
GPT-6 Luna (default)	gpt-6-luna	$0.12	$0.012	$0.60	OpenAI
GPT-5.6 Luna	gpt-5.6-luna	$0.24	$0.024	$1.44	OpenAI
Claude Opus 5	claude-opus-5	$6.00	$0.60	$30.00	Anthropic
Grok 4.5	grok-4.5	$2.40	$0.36	$7.20	—
GPT-6.1 Sol	gpt-6.1-sol	$2.40	$0.12	$12.00	OpenAI
Claude Opus 5.5	claude-opus-5-5	$4.80	$0.24	$24.00	Anthropic
GPT-5.6 Sol	gpt-5.6-sol	$6.00	$0.60	$36.00	OpenAI
MiniMax M3	minimax-m3	$0.36	$0.072	$1.44	—

Token prices are USD per 1 million tokens. Browser sessions ($0.02/hour) and network traffic ($5/GB managed proxy or $0.20/GB proxyless/BYOP) are charged separately. See full pricing.

See Thinking levels for V4 modelParams and the normalized thinkingLevel values available in V2 and V3.

Use GPT-6 Luna with High reasoning for the default V4 configuration. Omit both model and modelParams to let the API apply it.

All supported V4 model IDs

The V4 request schema accepts the following model IDs. The Cloud dashboard may show a smaller curated set; availability can also depend on your account’s rollout and configured provider key. An accepted ID does not guarantee access to every upstream provider. Experimental models are not recommended as a production default. MiniMax M3 remains an API option even where it is absent from the dashboard picker.

Provider	Model IDs	BYOK provider
Anthropic	claude-opus-4.7, claude-opus-4.8, claude-opus-5, claude-opus-5-5, claude-fable-5, claude-sonnet-5	Anthropic
OpenAI	gpt-5.5, gpt-5.6, gpt-5.6-sol, gpt-5.6-terra, gpt-5.6-luna, gpt-6-astra, gpt-6-sol, gpt-6.1-sol, gpt-6-luna	OpenAI
Google	gemini-3-flash, gemini-3.1-pro, gemini-3.5-flash, gemini-3.6-flash	Google
xAI	grok-4.5, grok-4.6	—
Z.ai	glm-5.2, glm-5.3-flash	—
DeepSeek	deepseek-v4.1-flash, deepseek-v4-flash-vision (experimental)	—
Xiaomi	mimo-v2.6-pro, mimo-v2.6-flash	—
Moonshot AI	kimi-k3	—
MiniMax	minimax-m3	—

Free-plan projects (no credits purchased yet) can use only gpt-6-luna, gpt-5.6-luna, deepseek-v4.1-flash, gemini-3-flash, minimax-m3, and the early-access bu-ultrafast and bu-fast presets; other models return 403 until you buy credits. Zero Data Retention projects cannot use claude-fable-5, deepseek-v4.1-flash, mimo-v2.6-pro, or mimo-v2.6-flash (403).

See Thinking levels for the reasoning controls accepted by each model. Not every model accepts modelParams.

If your installed TypeScript SDK does not yet list gpt-6-luna, omit both model and modelParams as below to use the API default, or use REST to select that model explicitly. The API model catalog can advance before SDK type releases.

Python

from browser_use_sdk.v4 import BrowserUse

client = BrowserUse()
run = client.runs.create(
    "Compare three project-management tools",
)

Bring your own key

BYOK is available to pay-as-you-go customers; no recurring subscription is required. After adding credits, add an Anthropic, OpenAI, or Google key under Settings → API Keys → Bring Your Own Key. V4 uses it automatically for matching models; no request flag is needed. You pay the provider directly, plus a 0.2× Browser Use orchestration fee. Models from other providers use Browser Use-managed keys.