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Doubleword API

Open in consoleI need inference
  • 17Models
  • 7Labs
  • 1.05MMax context
  • $0.09/ $0.18From, per 1M in / out

Pricing

ModelLabContextInput / 1MCached / 1MOutput / 1MProviders
Kimi K3.1 Promoonshotai/kimi-k3.1-proMoonshot AI1.05M$2.00$0.20$10.005
DeepSeek V4.1 Flash 1017deepseek/deepseek-v4.1-flash-1017DeepSeek1.05M$0.15$0.003$0.606
Muse Spark Openmeta/muse-spark-openMeta1.05M$1.25$0.15$4.252
DeepSeek V4.1 Flashdeepseek/deepseek-v4.1-flashDeepSeek1.05M$0.15$0.003$0.609
GLM 5.3 Flashz-ai/glm-5.3-flashZ.ai1.05M$0.15$0.03$0.5012
GLM 5.3z-ai/glm-5.3Z.ai1.05M$1.40$0.28$4.4012
DeepSeek V4 Pro 0813deepseek/deepseek-v4-pro-0813DeepSeek1.05M$1.32$0.132$3.966
Qwen3.8 27Bqwen/qwen3.8-27bQwen262K$0.45$0.045$3.008
Muse Glimmer 30Bmeta/muse-glimmer-30bMeta131K$0.11$0.0132$0.322
DeepSeek V4 Flash 0731deepseek/deepseek-v4-flash-0731DeepSeek1.05M$0.09$0.018$0.189
Kimi K3moonshotai/kimi-k3Moonshot AI1.05M$3.00$0.30$15.0010
GLM 5.2z-ai/glm-5.2Z.ai1.05M$0.93$0.186$3.008
Nemotron 3 Ultranvidia/nemotron-3-ultra-550b-a55bNVIDIA1.05M$0.50$0.125$2.202
Qwen3.6 35B A3Bqwen/qwen3.6-35b-a3bQwen262K$0.14$0.14$1.004
Qwen3.5 35B A3B dottxtqwen/qwen3.5-35b-a3b-dottxtQwen262K$0.35$0.20$1.201
Gemma 4 31Bgoogle/gemma-4-31b-itGoogle262K$0.12$0.12$0.354
Qwen3 VL 235B A22B Instructqwen/qwen3-vl-235b-a22b-instructQwen262K$0.21$0.1155$1.901

Doubleword's price, USD, as of November 5, 2026. Live prices

Quickstart

OpenAI-compatible
curl https://api.routerplus.com/v1/chat/completions \
  -H "Authorization: Bearer $ROUTERPLUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "z-ai/glm-5.3",
    "messages": [{ "role": "user", "content": "Hello" }],
    "max_tokens": 1024,
    "provider": { "only": ["doubleword-chat"] }
  }'

FAQ

How do I send a request to Doubleword?

Routing tries providers cheapest first, by input plus output price, so Doubleword serves a model where it is the cheapest and otherwise as a fallback. To send a request to Doubleword first, name it in provider.only or provider.order as "doubleword-chat".

How much does Doubleword cost on RouterPlus?

You pay Doubleword's own price for the model. Doubleword's lowest input price is $0.09 per million tokens (DeepSeek V4 Flash 0731) and its lowest output price is $0.18 per million tokens (DeepSeek V4 Flash 0731). Prices as of November 5, 2026.

Which models does Doubleword serve?

Kimi K3.1 Pro, DeepSeek V4.1 Flash 1017, Muse Spark Open, DeepSeek V4.1 Flash, GLM 5.3 Flash, GLM 5.3, DeepSeek V4 Pro 0813, Qwen3.8 27B, Muse Glimmer 30B, DeepSeek V4 Flash 0731, Kimi K3, GLM 5.2, Nemotron 3 Ultra, Qwen3.6 35B A3B, Qwen3.5 35B A3B dottxt, Gemma 4 31B and Qwen3 VL 235B A22B Instruct.

Does Doubleword keep my prompts?

Doubleword declares that it retains prompts, per its published policy.

Route to Doubleword with one key

Open in consoleI need inference