Google Cloud Agent Evaluation

Web · API

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Google Cloud Agent Evaluation is ranked #4 of 29 in AI prompt generators on Freedom251. It runs on API, Web. There is no free plan. A free trial is offered.

Google Cloud Agent Evaluation plans and pricing

All plans

Pay-as-you-go usage Free $0.00003 per 1k input characters and $0.00009 per 1k output characters for computation-based metrics; model-based metrics are charged for underlying autorater model prediction costs. Pricing is usage-based; model-based metric charges depend on dataset input tokens and autorater output · Third-party model evaluation also incurs model inference charges cloud.google.com · 2 Oct 2026

Compared on AI prompt generators

Evaluation methods: hybrid
Tool-call checks: Yes
Trace ingestion: Yes
Safety evaluations: Yes
Regression runs: Yes
SDK language support: both

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The record

Purpose: Agent evaluation measures and helps improve agents' performance, safety, and quality.
Evaluation workflow: The workflow defines evaluation cases, runs inferences, captures behavior traces, computes metrics, analyzes results, and optimizes the agent.
Synthetic scenarios: It can automatically generate diverse, multi-turn synthetic test scenarios from agent instructions and tool definitions.
Environment simulation: It can intercept tool calls to inject custom behavior, mocked data, or simulated errors such as HTTP 503 errors and latency spikes.
Metrics: Prebuilt or custom raters score traces, including reference-based Exact Match and reference-free Helpfulness metrics.
Production traces: Evaluation can score traces captured from production traffic or external logs without a managed test environment.
Prompt optimization: Prompt optimization identifies failure points and iteratively proposes targeted updates to system instructions.
Integrations: Google provides evaluation notebook launch options for Colab, Colab Enterprise, Agent Platform Workbench, and GitHub.
Coding assistant support: Evaluation skills for Gemini CLI or other AI coding assistants provide workflows, dataset schemas, metric guidance, and failure analysis steps.
Third-party models: The console tutorial says the Gen AI evaluation service can evaluate Anthropic and Llama partner models through Agent Platform Model Garden.
Quota limit: The documented default quotas include 1,000 evaluation service requests per project per region per minute and 20 concurrent evaluation runs per project per region.
Trial credits: New Google Cloud customers get $300 in free credits to run, test, and deploy workloads.
Support: Google Cloud Basic Support includes documentation, community forums, billing assistance, and Active Assist; customers can upgrade for tailored technical support.
Compliance: Google Cloud states that its services undergo independent verification of security, privacy, and compliance controls and achieve certifications against global standards.

Where it ranks on Freedom251

Best AI Prompt Generators in 2026#4 of 29
Best AI Agent Evaluation Tools in 2026#13 of 29
Best Retrieval-Augmented Generation Tools in 2026#9 of 26

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Sources

docs.cloud.google.com/gemini-enterprise-agent-platform/optimi· checked 2 Oct 2026
docs.cloud.google.com/gemini-enterprise-agent-platform/models· checked 2 Oct 2026
docs.cloud.google.com/gemini-enterprise-agent-platform/models· checked 2 Oct 2026
cloud.google.com/support· checked 2 Oct 2026
cloud.google.com/security/compliance/offerings/· checked 2 Oct 2026
cloud.google.com/products/gemini-enterprise-agent-platfo· checked 2 Oct 2026