CG
Constellation Gate AI
Drop-in inline defense for AI agents, with token reduction built in
AI security gatewayResearch in progress
Company overview
Constellation Gate AI positions Gate as an inline gateway that sits between an agent and the model, screening every request in both directions for prompt attacks, secrets and personal data, while compressing prompts to reduce token spend.
Ideal customer: Engineering teams operating agentic coding tools and LLM applications that route through a single endpoint
- Blocking prompt injection before it reaches the model
- Redacting PII and secrets in outbound prompts and inbound responses
- Reducing prompt token counts on repetitive agent traffic
GateYourAI verdict
Gate is one of the few products marketed explicitly on both halves of the AI gate problem: it inspects traffic inline for injection, secrets and PII, and it advertises automatic token reduction on the same request path. That combination is the thesis GateYourAI tracks. Our verification of individual controls and of the vendor's benchmark and savings figures is still in progress, so no score is published yet.
Best for: Teams running coding agents that want prompt security and token reduction in one hop. Read how we assess platforms.
Security capabilities
A capability is marked available only when an official page or documentation says so. “Not publicly documented” means we could not find it — not that the vendor lacks it.
| Capability | Status | Verification | Source |
|---|---|---|---|
| Prompt-injection detectionIdentifies attempts to override system instructions in prompts or tool output.Product page states attacks are screened before reaching the model. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| Prompt-injection blockingBlocks the request before it reaches the model, rather than only logging it.Product page shows a "Blocked · Injection" state on outbound requests. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| Jailbreak detectionDetects known jailbreak and guardrail-evasion patterns. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| PII detectionIdentifies personal information in prompts or responses. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| PII redactionMasks or removes personal information before it leaves the gateway.Product page shows a "Redacted · PII" state. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| Secret & credential scanningDetects API keys, tokens and credentials in prompts or output.Product page shows a "Flagged · Secret" state for credential patterns. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| Input inspectionInspects outbound requests before they reach the model.Outbound requests are described as inspected inline. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| Output inspectionInspects inbound model responses before they reach the application.Inbound responses are described as inspected inline. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| Content moderationClassifies harmful or policy-violating content. Not equivalent to injection defense. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Policy enforcementConfigurable rules applied per route, team, key or environment. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Agent & tool controlsConstrains tool calls, autonomous actions and agent permissions.Hijacked tool calls are described as stopped; the configuration surface is not yet verified. | LimitedLimited. Partially documented. | Partially documented | Constellation Gate AI — product homepage |
| MCP securityControls or inspects Model Context Protocol server traffic. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Audit logsDurable, reviewable record of requests and policy decisions. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Access controlsRoles, teams, keys and scoped permissions. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
Cost-optimization capabilities
Token reduction, avoided calls, cheaper-model routing, budgets and reporting are tracked separately because they are not interchangeable.
| Capability | Status | Verification | Source |
|---|---|---|---|
| Prompt compressionReduces the number of tokens actually sent to the model.Product page shows a "Compressed" state with a percentage prompt reduction. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| Exact cachingReturns a stored response for a byte-identical request. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Semantic cachingReturns a stored response for a semantically similar request using embeddings. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Intelligent model routingChooses a model per request based on task, cost or performance.One endpoint fronting many models is advertised; cost-based routing is not documented. | LimitedLimited. Partially documented. | Partially documented | Constellation Gate AI — product homepage |
| Automatic fallbackRetries against an alternate model or provider on failure. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Load balancingDistributes traffic across keys, regions or providers. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Token budgetsHard or soft limits expressed in tokens. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Dollar budgetsSpending limits expressed in currency. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Rate limitsRequest throttling. Throttling is not the same as token reduction. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Cost attributionAttributes spend to teams, keys, users or features. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Cost analyticsDashboards and reporting on token and dollar usage. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Savings reportingReports the spend avoided by compression, caching or routing.Token spend reduction is advertised; a savings report surface is not verified. | LimitedLimited. Partially documented. | Partially documented | Constellation Gate AI — product homepage |
Supported models and deployment options
Hosted SaaS endpoint advertised. Private and self-hosted options: verification pending.
| Capability | Status | Verification | Source |
|---|---|---|---|
| OpenAISupports OpenAI models. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| AnthropicSupports Anthropic models. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| Google GeminiSupports Google Gemini models. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| AWS BedrockSupports AWS Bedrock as a provider. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Azure OpenAISupports Azure OpenAI deployments. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Open-source modelsSupports open-weight models or self-hosted inference endpoints.OpenRouter is listed as a reachable model API. | LimitedLimited. Partially documented. | Partially documented | Constellation Gate AI — product homepage |
| SaaS deploymentVendor-hosted managed service. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| VPC / private cloudDeployable inside a customer cloud account. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| On-premiseDeployable in a customer data centre. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Self-hostedCustomer runs and operates the gateway themselves. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Open-source optionSource code published under an open-source licence. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| APIProgrammatic API for configuration or traffic.One OpenAI-style endpoint fronting multiple model APIs. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| SDKOfficial client libraries. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
Pricing status
Free tier advertised on the product page. Full pricing verification pending.
| Capability | Status | Verification | Source |
|---|---|---|---|
| Public pricingList pricing published on the vendor website. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Free tierA permanently free usage tier.Free tier included, no credit card required. | AvailableAvailable. Verified from official product page. | Verified from official product page | Constellation Gate AI — product homepage |
| Free trialA time-limited or credit-limited trial. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Enterprise planA named enterprise tier. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
| Contact sales requiredPricing requires contacting the vendor. | Verification pendingVerification pending. Verification pending. | Verification pending | — |
Vendor claims on record
We store claims verbatim with their conditions. Savings and effectiveness numbers below are vendor-reported potential outcomes, not guaranteed or independently tested results.
“Leader in public prompt-injection benchmarks”
- Claim type:
- Security effectiveness
- Vendor-reported:
- Yes
- Independently verified:
- Not independently tested
- Test conditions:
- Vendor-published benchmark. Test set, attack corpus and scoring not independently reviewed.
“Prompt compression reduces prompt size on inspected requests”
- Claim type:
- Direct token reduction
- Figure:
- Vendor product page illustrates a −38% prompt reduction in an example request
- Vendor-reported:
- Yes
- Independently verified:
- Not independently tested
- Test conditions:
- Illustrative example on the product page. Models, prompt type and quality measurement not disclosed.
Strengths
- Security and cost controls operate on the same inline request path, not as separate tools
- Positioned for agent traffic specifically, including coding agents and tool output
- Free tier advertised with no credit card required
Limitations
- Benchmark leadership and compression percentages are vendor-reported and have not been independently tested by GateYourAI
- Deployment options beyond the hosted service are not yet verified from documentation
- Compliance posture and enterprise controls are not yet verified
Alternatives to Constellation Gate AI
PortkeyTeams that want an open-source gateway with guardrails and spend controlsTrueFoundry AI GatewayEnterprises that need gateway capabilities inside their own cloud boundaryKong AI GatewayPlatform teams already running Kong that want AI policy in the same data plane
You can also compare Constellation Gate AI against up to three other platforms, or read the AI Gate pillar page.
Sources
- Constellation Gate AI — product homepage Constellation Network · Official product page · Accessed 2026-07-30
- Constellation Gate AI documentation Constellation Network · Official documentation · Accessed 2026-07-30Queued for detailed capability extraction.
- Gate AI prompt-injection benchmark Constellation Network · Official blog · Accessed 2026-07-30Vendor-published benchmark. Not independently reproduced by GateYourAI.
Last reviewed: 2026-07-30
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