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Cheapest open model API prices in October 2026, from $0.039

Lowest input and output prices for 8 new open-weight models.

RouterPlus lists eight of the newest open-weight models from as little as $0.039 per million input tokens. These are the lowest prices per million tokens for each, from the live catalog on October 31, 2026.

What changed

  • Qwen3.8 27B has the lowest input price in the table, $0.039 on Chutes.
  • GLM 5.3 Flash has the lowest output price, $0.20, and its lowest input price, $0.05, comes from the same provider, Wafer.
  • GLM 5.3 has the most providers in the catalog, 11.
  • Mistral released the Mistral Large 4 weights on October 29 and set its API price at $0.70 input and $2.10 output. RouterPlus lists it on 1 provider.
  • Reflection AI released the Beam weights on October 16 under Apache 2.0. RouterPlus lists it on 1 provider.

Lowest prices by model

Prices per million tokens. The lowest input and lowest output for a model can come from different providers.

ModelModel IDLowest inputLowest outputProviders
Qwen3.8 27Bqwen/qwen3.8-27b$0.039 (Chutes)$0.40 (RunInfra)6
GLM 5.3 Flashz-ai/glm-5.3-flash$0.05 (Wafer)$0.20 (Wafer)10
DeepSeek V4.1 Flash 1017deepseek/deepseek-v4.1-flash-1017$0.09 (Sail Research)$0.30 (Sail Research)5
DeepSeek V4.1 Flashdeepseek/deepseek-v4.1-flash$0.12 (Morph)$0.42 (DeepInfra)9
Beam 1.0 501B A23Breflection/beam-1.0-501b-a23b$0.25 (Nebius)$1.00 (Nebius)1
GLM 5.3z-ai/glm-5.3$0.30 (Wafer)$2.50 (DeepInfra)11
Mistral Large 4mistral-large-4$0.70 (Mistral AI)$2.10 (Mistral AI)1
Kimi K3moonshotai/kimi-k3$1.50 (Sail Research)$9.50 (Chutes)9

What to do

  • Sign up at app.routerplus.com/login and call any model in the table with one API key at https://api.routerplus.com/v1, using its model ID.
  • Prices change. Check the model page or the full model list before you commit to a provider.

Sources

  1. RouterPlus model catalog
  2. Mistral: Mistral Large 4 is now open weight
  3. Reflection: Beam is now available