FastMetal

Rankings by use case

The best LLM APIs you can call today, by use case

Only models FastMetal serves, ranked per use case. Positions come from the public arena's ELO; prices are yen per 1M tokens. As of August 2026.

Coding

  1. 1Claude Fable 5¥8,935
  2. 2Claude Opus 4.7¥4,200
  3. 3Claude Opus 4.6¥4,200
  4. 4Claude Opus 5¥4,467.5
  5. 5Kimi K3¥2,680.5

Japanese

  1. 1Claude Fable 5¥8,935
  2. 2Claude Opus 4.7¥4,200
  3. 3Claude Opus 4.6¥4,200
  4. 4GLM 5.2¥786.28
  5. 5Claude Sonnet 5¥1,787

Overall

  1. 1Claude Fable 5¥8,935
  2. 2Claude Opus 4.6¥4,200
  3. 3Claude Opus 5¥4,467.5
  4. 4Claude Opus 4.7¥4,200
  5. 5Kimi K3¥2,680.5

Math

  1. 1Claude Fable 5¥8,935
  2. 2Claude Opus 5¥4,467.5
  3. 3Gemini 3.5 Flash¥1,608.3
  4. 4Claude Opus 4.6¥4,200
  5. 5Grok 4.5¥1,072.2

Writing

  1. 1Claude Fable 5¥8,935
  2. 2Claude Opus 5¥4,467.5
  3. 3Claude Opus 4.7¥4,200
  4. 4Claude Opus 4.6¥4,200
  5. 5GPT-5.6 Sol¥5,361

Instruction following

  1. 1Claude Fable 5¥8,935
  2. 2Claude Opus 5¥4,467.5
  3. 3Claude Opus 4.6¥4,200
  4. 4Claude Opus 4.7¥4,200
  5. 5GPT-5.6 Sol¥5,361

Hard prompts

  1. 1Claude Fable 5¥8,935
  2. 2Claude Opus 4.6¥4,200
  3. 3Claude Opus 5¥4,467.5
  4. 4Claude Opus 4.7¥4,200
  5. 5Kimi K3¥2,680.5

Multi-turn chat

  1. 1Claude Opus 4.7¥4,200
  2. 2Claude Fable 5¥8,935
  3. 3Claude Opus 4.6¥4,200
  4. 4Kimi K3¥2,680.5
  5. 5Claude Opus 4.8¥4,467.5

Vision

  1. 1Claude Fable 5¥8,935
  2. 2Claude Opus 5¥4,467.5
  3. 3Claude Opus 4.7¥4,200
  4. 4Claude Opus 4.6¥4,200
  5. 5Gemini 3.5 Flash¥1,608.3

Price

  1. 1Voxtral Mini 3B¥8.4
  2. 2DeepSeek V4 Flash¥32.17
  3. 3MiMo-V2.5¥50.04
  4. 4GLM 4.7 Flash¥71.48
  5. 5gpt-oss-120b¥79

Long context

  1. 1GPT-5.6 Luna¥214.44
  2. 2GPT-5.6 Sol¥5,361
  3. 3GPT-5.6 Terra¥2,144.4
  4. 4MiMo-V2.5¥50.04
  5. 5MiMo-V2.5-Pro¥155.47

Price is per 1M output tokens