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BestRelay

A note on standards

The model you name is the model that answers.

BestRelay carries each request to the official Claude, GPT and Gemini endpoints exactly as you wrote it. The model id travels untouched, nothing is quietly swapped for a cheaper tier, and every call is priced from the token count the provider itself reports.

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New accounts open with $0.35 of credit.

The lineup, set in full

20 models currently relayed, each under its official name.

  • Claude Fable 5Anthropic
  • Claude Fable 5.1Anthropic
  • Claude Haiku 4.5Anthropic
  • Claude Opus 5Anthropic
  • Claude Opus 5.5Anthropic
  • Claude Sonnet 5Anthropic
  • Claude Sonnet 5.5Anthropic
  • GPT-5.6 SolOpenAI
  • GPT-6 AstraOpenAI
  • GPT-6.1 SolOpenAI
  • Gemini 2.5 FlashGoogle
  • Gemini 3.1 ProGoogle
  • Gemini 3.8 FlashGoogle
  • Gemini 4 ArgonGoogle
  • DeepSeek V4 ProDeepSeek
  • Qwen3.8 MaxQwen, from Alibaba
  • Kimi K3Kimi, from Moonshot
  • GLM-5.3GLM, from Zhipu
  • Grok 4.6Grok, from xAI
  • Grok 4.7Grok, from xAI

How we choose which models to list

A model goes on the list only when its maker's own API serves it under its published name, and we can bill it from the usage figures that API returns. If a request cannot reach the genuine model, we do not offer the name.

When a provider retires an id, we delist it rather than quietly pointing it at something else. Older GPT ids that the provider itself now answers with GPT-6.1 Sol stay callable for existing configurations, are billed at GPT-6.1 Sol's price, and are not presented as separate models.

Each listing carries all four prices (input, output, cache write and cache read) and the protocol it speaks, so before the first call you can see what it will cost and how to reach it.

Selected prices

Eight models from the list, at their current prices.

ModelProvenance (maker)InputOutput
Claude Fable 5.1claude-fable-5-1Anthropic$4.10$20.42
Claude Opus 5.5claude-opus-5-5Anthropic$1.74$8.13
GPT-6 Astragpt-6-astraOpenAI$0.7639$3.96
Gemini 4 Argongemini-4-argonGoogle$1.67$8.06
Gemini 3.1 Progemini-3.1-proGoogle$1.74$9.93
Kimi K3kimi-k3Kimi, from Moonshot$1.39$7.01
Qwen3.8 Maxqwen3.8-maxQwen, from Alibaba$0.8333$2.57
DeepSeek V4 Prodeepseek-v4-proDeepSeek$1.53$4.58

Prices in US dollars per million tokens, converted at ¥7.2 to $1. Accounts are billed in yuan.

Read the full rate card