Model error diagnosis

Inception: Mercury 2 | model capability unsupported

Inception: Mercury 2 returning 400 / model capability unsupported means you should first confirm whether model ID inception/mercury-2 is visible for this Inception key, then separate permission, context, capability, rate limit, or route issues.

Model

inception/mercury-2

Inception: Mercury 2

Provider

Inception

3 models in catalog

Error type

model capability unsupported

capability-unsupported

Status code

400

global model route

Model error summary

Model

inception/mercury-2

Error type

capability-unsupported

Status code

400

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

What this model error usually means

Inception: Mercury 2 returning 400 / model capability unsupported means you should first confirm whether model ID inception/mercury-2 is visible for this Inception key, then separate permission, context, capability, rate limit, or route issues.

Model: inception/mercury-2
Provider: Inception
Status code: 400

How to prove it during checking

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

List models: confirm whether inception/mercury-2 is actually visible instead of guessing from the display name.
Light probe: use minimal input to verify whether Inception returns the same 400, then record the error body.
Compare model facts: context 128,000, input $0.250, output $0.750.
supports include_reasoning
supports max_tokens
supports reasoning
supports response_format

Next action

Inception: Mercury 2 model capability unsupported 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: 128,000
Price: $0.250 / $0.750
Read-only check. Detection data burns after 5 minutes.

Open key check

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