Model error diagnosis

Meta: Llama 4 Maverick | model permission denied

Meta: Llama 4 Maverick returning 403 / model permission denied means you should first confirm whether model ID meta-llama/llama-4-maverick is visible for this Meta key, then separate permission, context, capability, rate limit, or route issues.

Model

meta-llama/llama-4-maverick

Meta: Llama 4 Maverick

Provider

What this model error usually means

Meta: Llama 4 Maverick returning 403 / model permission denied means you should first confirm whether model ID meta-llama/llama-4-maverick is visible for this Meta key, then separate permission, context, capability, rate limit, or route issues.

Model: meta-llama/llama-4-maverick
Provider: Meta
Status code: 403

How to prove it during checking

Read-only check. Detection data burns after 5 minutes.

List models: confirm whether meta-llama/llama-4-maverick is actually visible instead of guessing from the display name.
Light probe: use minimal input to verify whether Meta returns the same 403, then record the error body.
Compare model facts: context 1,048,576, input $0.150, output $0.600.
supports frequency_penalty
supports logit_bias
supports max_tokens
supports min_p

Next action

Meta: Llama 4 Maverick model permission denied should not end at failed. Return the next move: change model ID, add permission, reduce context, disable unsupported capability, change route, monitor, or hold listing.

Context: 1,048,576
Price: $0.150 / $0.600
Read-only check. Detection data burns after 5 minutes.

Open key check

Read-only check. Detection data burns after 5 minutes.

Open models

Meta: Llama 4 Maverick

Open providers