# APIMaster vs Not Diamond

APIMaster records 210,182 monthly visits with +46.3% month-over-month growth and Paid pricing. Not Diamond records 29,244 monthly visits with +25.3% growth and Freemium, Paid, Contact for Pricing pricing.

| Metric | [APIMaster](https://openaitools.app/tool/apimaster) | [Not Diamond](https://openaitools.app/tool/not-diamond) |
| :--- | :--- | :--- |
| Website URL | https://apimaster.ai | https://www.notdiamond.ai |
| Categories | AI API, AI Developer Tools, AI Website Builder, AI Chatbot | AI Models, Large Language Models (LLMs), AI Developer Tools, Open Source AI Models |
| Pricing Model | Paid | Freemium, Paid, Contact for Pricing |
| Monthly Visits | 210,182 | 29,244 |
| MoM Growth Rate | +46.3% | +25.3% |
| Primary Market | United States | Australia |
| Direct Visits | 65,736 | 12,470 |
| Review Score | 4 | 4.4 |
| Saved Count | 0 | 0 |
| Supported Platforms | Website | Website |

## APIMaster

APIMaster is an API routing marketplace for teams that want access to frontier models without paying frontier list prices. It aggregates verified provider channels for GPT, Claude, Gemini, DeepSeek, Qwen, Kling, Seedance and others behind one OpenAI-compatible endpoint, then routes each request to the lowest-cost verified channel available. You top up a single prepaid balance and burn it across every model in the catalogue.

The core trust problem with cheap API resale is model substitution. APIMaster addresses it with an LLM fingerprint test applied to each provider before it is listed, so the model answering your request matches the one on the pricing page. The site also exposes uptime figures and per-million-token input and output rates for each route, which makes it possible to see that a cheaper channel is genuinely live rather than simply cheaper.

Reliability is handled with automatic failover. If a channel degrades, traffic moves to the next verified provider without you rotating keys or redeploying. The catalogue covers LLM, image, video, audio and embedding endpoints, and because the interface is OpenAI-compatible, existing agent tooling and IDE integrations such as Cursor, Claude Code, LangChain and LiteLLM work with only a base URL and key swap. It is aimed at indie builders and product teams whose main cost driver is inference spend.

**Pricing & Plans:** Pay-as-you-go against a prepaid balance. Rates are quoted per million input and output tokens and vary by model and routed provider, with discounts advertised at up to around 90% off official list pricing. Top-ups are made via USDT or Epay; no credit card is required to create a key.

- **Broad model catalogue:** The catalogue spans over 90 models across LLMs, image, video, audio and embedding endpoints, individually priced per million tokens.
- **Fingerprint-verified APIs:** Each listed provider passes an LLM fingerprint test intended to confirm you receive the exact model you paid for, with no silent substitution.
- **Automatic failover routing:** If a routed channel goes down, requests are automatically routed to the next verified provider, so production calls keep running without manual key rotation.
- **One OpenAI-compatible key:** Use one key and one prepaid balance across every model, with an OpenAI-compatible base URL for tools like Cursor, LangChain and LiteLLM.
- **Cost and uptime transparency:** The site exposes per-provider uptime figures and input and output token rates so you can compare routes before committing traffic.

**Strengths:** Large single-point catalogue of models behind one OpenAI-compatible key; Discounts advertised at up to 90% off official list pricing; Automatic failover removes single-upstream downtime as a failure mode; Per-provider uptime and token rates are published for comparison

[Profile (Markdown)](https://openaitools.app/tool/apimaster.md)

## Not Diamond

Not Diamond tackles a familiar problem for teams building coding agents: choosing among dozens of models, reasoning levels and context strategies is hard, so most developers simply default to the strongest (and priciest) model for everything. Not Diamond's router analyzes payload semantics, KV cache state, implicit feedback signals, session outcomes, sub-agent structure and compaction events, then recommends both a model and a reasoning budget for each step in a session.

The company stresses that it is a router, not a gateway. It integrates with the gateway and agent harness you already run, which helps avoid vendor lock-in and keeps execution inside your own infrastructure. Recommendations can also use privacy-preserving routing, where decisions are based on derived metadata and locally computed features so your prompts and outputs are never exposed.

Not Diamond reports at least 20-40% cost savings for typical teams with no measurable quality loss versus the frontier, and shares customer stories such as OpenRouter, Replicated and Rootly citing accuracy gains after adoption. It is SOC 2 and ISO 27001 compliant and offers SLAs plus around-the-clock support for enterprise customers, with continuous reinforcement learning that improves recommendations over time.

**Pricing & Plans:** Pay-as-you-go at $0.05 per million tokens routed, with multi-harness and multi-provider support plus a savings and usage dashboard. An Enterprise tier adds volume discounts, organization-wide analytics, admin controls, SSO via SAML and privacy-preserving deployment. Larger teams can request access or book a demo.

- **Intelligent per-request routing:** Predicts the best model and reasoning effort for each step of a session by weighing prompt semantics, cache state, sub-agent structure and past session outcomes.
- **Harness and gateway agnostic:** Works alongside the coding-agent harness and model gateway you already use, so recommendations execute inside your own stack without locking you into a single provider.
- **Privacy-preserving routing:** Can route using only derived request metadata and locally computed features, so Not Diamond never sees your payloads, inputs or outputs.
- **Continuous learning:** Reinforcement learning from feedback signals and session results personalizes recommendations per developer and transfers learnings across an organization.
- **Savings and usage dashboard:** Tracks routing spend and savings so teams can measure the cost impact and verify quality is maintained.

**Strengths:** Purpose-built for long-horizon coding agents rather than generic chat; Integrates with existing gateways and harnesses instead of replacing them; Documented 20-40% cost savings with reports of maintained or improved quality; SOC 2 and ISO 27001 compliance with SSO and privacy-preserving routing

**Limitations:** Requires a gateway and harness setup, so not a plug-and-play standalone product; No published free tier; pay-as-you-go and enterprise access may need a demo or application; Value depends heavily on how much multi-model overhead your workload already has

[Profile (Markdown)](https://openaitools.app/tool/not-diamond.md)

## Frequently Asked Questions

### How do APIMaster and Not Diamond compare in monthly traffic?

APIMaster has 210,182 monthly visits, while Not Diamond has 29,244. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

APIMaster has a month-over-month growth rate of +46.3%; Not Diamond has +25.3%.

### How does pricing compare?

APIMaster: Paid. Pay-as-you-go against a prepaid balance. Rates are quoted per million input and output tokens and vary by model and routed provider, with discounts advertised at up to around 90% off official list pricing. Top-ups are made via USDT or Epay; no credit card is required to create a key. Not Diamond: Freemium, Paid, Contact for Pricing. Pay-as-you-go at $0.05 per million tokens routed, with multi-harness and multi-provider support plus a savings and usage dashboard. An Enterprise tier adds volume discounts, organization-wide analytics, admin controls, SSO via SAML and privacy-preserving deployment. Larger teams can request access or book a demo.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [DeepSeek](https://openaitools.app/tool/deepseek) | 372,761,591 | +4.3% | Freemium | High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs. | [.md](https://openaitools.app/tool/deepseek.md) |
| 2 | [OpenAI Platform](https://openaitools.app/tool/openai) | 234,678,639 | -9.6% | Paid | Official frontier models with maximum reliability, but lacks third-party model aggregation and cost-saving routing. | [.md](https://openaitools.app/tool/openai.md) |
| 3 | [Google AI Studio](https://openaitools.app/tool/google-ai-studio) | 112,620,020 | +2% | Freemium | Direct native access to Google's Gemini models with generous free tiers, but limited to Google's ecosystem. | [.md](https://openaitools.app/tool/google-ai-studio.md) |
| 4 | [OpenRouter](https://openaitools.app/tool/openrouter-ai) | 19,941,437 | -6.2% | Paid | One API key for hundreds of AI models from every major provider | [.md](https://openaitools.app/tool/openrouter-ai.md) |
| 5 | [Gemma Open Models by Google](https://openaitools.app/tool/gemma-open-models-by-google) | 4,900,914 | -13.5% | Freemium, Paid | Google's family of lightweight, open-weight AI models | [.md](https://openaitools.app/tool/gemma-open-models-by-google.md) |
| 6 | [Gemini 4 Carbon (Gemini Carbon 4)](https://openaitools.app/tool/gemini-4-carbon) | 4,339,429 | +12.7% | Freemium | Google DeepMind's #1 frontier AI model (Gemini Carbon 4) for long-horizon agentic coding, cybersecurity defense, and 1M-token multimodal reasoning. | [.md](https://openaitools.app/tool/gemini-4-carbon.md) |
| 7 | [OrcaRouter](https://openaitools.app/tool/orcarouter) | 975,300 | -5.2% | Freemium | One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control | [.md](https://openaitools.app/tool/orcarouter.md) |
| 8 | [Atlas Cloud](https://openaitools.app/tool/atlas-cloud) | 777,031 | -16.4% | Paid | Unified AI inference platform supporting multiple modalities, but less specialized purely for LLM routing. | [.md](https://openaitools.app/tool/atlas-cloud.md) |
| 9 | [BLACKBOX.AI](https://openaitools.app/tool/blackbox-ai-1) | 622,975 | -27.2% | Free Trial, Paid | High-trust frontier inference, encrypted end to end | [.md](https://openaitools.app/tool/blackbox-ai-1.md) |
| 10 | [CometAPI](https://openaitools.app/tool/cometapi) | 602,966 | +49.7% | Pay-as-you-go (credits) | Offers a comparable large catalog of frontier models under one endpoint, but documentation and community support are more limited. | [.md](https://openaitools.app/tool/cometapi.md) |

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Source: https://openaitools.app/compare/apimaster-vs-not-diamond

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