--- title: "ai-gateway vs GPTCache" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/ferro-labs-ai-gateway-vs-zilliztech-gptcache" tools: ["ferro-labs-ai-gateway", "zilliztech-gptcache"] --- # ai-gateway vs GPTCache *GraphCanon updated Aug 9, 2026* ## Verdict Pick ai-gateway if ai-gateway from Ferro Labs supports over 30 LLMs with integrated caching, guardrails, A/B testing, and cost controls, making it ideal for managing multiple language models in a production environment; pick GPTCache if semantic caching tool for LLMs, integrates with LangChain and llama_index. [ai-gateway](https://docs.ferrolabs.ai) reports 219 GitHub stars, 33 forks, and 63 open issues, last pushed Aug 7, 2026. [GPTCache](https://gptcache.readthedocs.io) has 8.1k stars, 589 forks, and 94 open issues, last pushed Jul 11, 2025. Figures are from public GitHub metadata via [ai-gateway's repository](https://github.com/ferro-labs/ai-gateway) and [GPTCache's repository](https://github.com/zilliztech/GPTCache). | | [ai-gateway](/tools/ferro-labs-ai-gateway.md) | [GPTCache](/tools/zilliztech-gptcache.md) | | --- | --- | --- | | Tagline | Unified AI Gateway for multiple LLMs with caching, guardrails, A/B testing, and cost controls | Semantic cache for LLMs. | | Stars | 219 | 8,124 | | Forks | 33 | 589 | | Open issues | 63 | 94 | | Language | Go | Python | | Adopt for | ai-gateway from Ferro Labs supports over 30 LLMs with integrated caching, guardrails, A/B testing, and cost controls, making it ideal for managing multiple language models in a production environment. | Semantic caching tool for LLMs, integrates with LangChain and llama_index. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 - a permissive free software license | MIT | | Categories | Inference & Serving, Model Training | Evaluation & Observability, Inference & Serving | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [ai-gateway](/tools/ferro-labs-ai-gateway.md) | [GPTCache](/tools/zilliztech-gptcache.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Dormant (18%) | | Days since push | 2d | 392d | | Open issues (now) | 63 | 94 | | Full report | [trust report](/tools/ferro-labs-ai-gateway/trust.md) | [trust report](/tools/zilliztech-gptcache/trust.md) | ## Decision facts: ai-gateway - **Adopt for:** ai-gateway from Ferro Labs supports over 30 LLMs with integrated caching, guardrails, A/B testing, and cost controls, making it ideal for managing multiple language models in a production environment. - **License detail:** Apache-2.0 - a permissive free software license ## Decision facts: GPTCache - **Adopt for:** Semantic caching tool for LLMs, integrates with LangChain and llama_index. ## Choose when ### Choose ai-gateway if… - ai-gateway is primarily Go; GPTCache is Python. - License: ai-gateway is Apache-2.0, GPTCache is MIT. - Tags unique to ai-gateway: ai-gateway, litellm, llm-cost, llm-proxy. - Also covers Model Training. - When you need to integrate more than 30 different LLM services including OpenAI and Anthropic ### Choose GPTCache if… - GPTCache is primarily Python; ai-gateway is Go. - License: GPTCache is MIT, ai-gateway is Apache-2.0. - Tags unique to GPTCache: aigc, autogpt, babyagi, chatbot. - Also covers Evaluation & Observability. - You need vector search capabilities integrated directly into your caching mechanism using Milvus or Redis. ## When NOT to use ai-gateway - If your project only involves one or two LLMs which does not necessitate the gateway's broad compatibility features - For small-scale projects that do not require comprehensive cost analysis tools - When custom integration for specific guardrails is required, as ai-gateway offers generalized settings ## When NOT to use GPTCache - Your application strictly requires a non-Python environment as GPTCache is Python-specific. - If you seek minimal dependencies and manual setup; GPTCache installs additional libraries automatically based on usage. ## Common questions ### What is the difference between ai-gateway and GPTCache? ai-gateway: Unified AI Gateway for multiple LLMs with caching, guardrails, A/B testing, and cost controls. GPTCache: Semantic cache for LLMs.. See the comparison table for live GitHub stats and shared categories. ### When should I choose ai-gateway over GPTCache? Choose ai-gateway over GPTCache when ai-gateway is primarily Go; GPTCache is Python; License: ai-gateway is Apache-2.0, GPTCache is MIT; Tags unique to ai-gateway: ai-gateway, litellm, llm-cost, llm-proxy; Also covers Model Training; When you need to integrate more than 30 different LLM services including OpenAI and Anthropic. ### When should I choose GPTCache over ai-gateway? Choose GPTCache over ai-gateway when GPTCache is primarily Python; ai-gateway is Go; License: GPTCache is MIT, ai-gateway is Apache-2.0; Tags unique to GPTCache: aigc, autogpt, babyagi, chatbot; Also covers Evaluation & Observability; You need vector search capabilities integrated directly into your caching mechanism using Milvus or Redis. ### When should I avoid ai-gateway? If your project only involves one or two LLMs which does not necessitate the gateway's broad compatibility features For small-scale projects that do not require comprehensive cost analysis tools When custom integration for specific guardrails is required, as ai-gateway offers generalized settings ### When should I avoid GPTCache? Your application strictly requires a non-Python environment as GPTCache is Python-specific. If you seek minimal dependencies and manual setup; GPTCache installs additional libraries automatically based on usage. ### Is ai-gateway or GPTCache more popular on GitHub? GPTCache has more GitHub stars (8,124 vs 219). Stars measure visibility, not whether either tool fits your constraints. ### Are ai-gateway and GPTCache open source? Yes - both are open-source projects on GitHub (ai-gateway: Apache-2.0, GPTCache: MIT). ### Where can I find alternatives to ai-gateway or GPTCache? GraphCanon lists graph-backed alternatives at [ai-gateway alternatives](/tools/ferro-labs-ai-gateway/alternatives) and [GPTCache alternatives](/tools/zilliztech-gptcache/alternatives) ([ai-gateway markdown twin](/tools/ferro-labs-ai-gateway/alternatives.md), [GPTCache markdown twin](/tools/zilliztech-gptcache/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/ferro-labs-ai-gateway-vs-zilliztech-gptcache.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, ai-gateway or GPTCache? ai-gateway: Very active. GPTCache: Dormant. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for ai-gateway and GPTCache? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [ai-gateway trust report](/tools/ferro-labs-ai-gateway/trust); [GPTCache trust report](/tools/zilliztech-gptcache/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=ferro-labs-ai-gateway`](/api/graphcanon/graph?tool=ferro-labs-ai-gateway) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_