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Introducing ByteSpike: one key, all the world's models

ByteSpike is a multi-model gateway with one Anthropic-compatible key, native CJK pricing, and a transparent rate card. We built it because we got tired of writing nine different SDKs.

KL5 min read

Today we're launching ByteSpike — one gateway, two protocols, every frontier model behind a single Anthropic-compatible key. Text, image, video, embedding, all priced in transparent credits. Failures don't bill. The full 45-model rate card is published at docs.bytespike.ai/pricing and refreshes nightly.

Why we built it

We're a small team that ships product. Half of 2025 we counted nine vendor integrations active in our codebases — Claude, GPT-4o, Gemini, DeepSeek, Doubao, plus image and video endpoints from three more providers. Each had its own SDK, retry semantics, error vocabulary, and billing surface. Every new model launch became another integration weekend.

We didn't want to be a switching layer. We wanted to be product engineers. So we built the switching layer once, properly, and put it behind one key. ByteSpike is that layer.

What's different from other aggregators

  • **Anthropic-compatible by default.** Keep your `tool_use`, `cache_control`, and `thinking` blocks. The OpenAI Chat Completions shape is shimmed transparently for legacy code.
  • **Public rate card.** Per-1M input / cache-write / cache-read / output for every chat model. Per-image and per-second rates for multimodal. No hidden tiers, no markup paragraphs.
  • **Failures don't bill.** Any non-2xx is free, regardless of which model failed or how far into the request. The narrow exception is video tasks cancelled mid-render — partial seconds bill.
  • **Native CJK billing.** WeChat Pay, Alipay, CNY invoices. The credit system is USD-denominated (1 USD = 1M credits) but settlement is fully bilingual.

Try it

Sign in at console.bytespike.ai to get a key with 500K credits free. Documentation is at docs.bytespike.ai. The full quickstart is two minutes. If you've used the Anthropic SDK, swap one base URL and you're already on the gateway.