Friday, August 21, 2026 · No. 390Prices synced 10 hours ago
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The AI Model Price Index

Mellum2 12B A2.5B

by Weights & Biases · listed Jun 2026TW

Mellum2-12B-A2.5B-Instruct is a fast MoE model with 131K context built for coding, tool use, and low-latency AI workflows.

Current rates USD per 1M tokens

Input$0.05
Output$0.10
Cache read$0.05
Cache write—

Against the market

Input price vs. maker flagships ($/1M tokens)
Mellum2 12B A2.5BMellum2 12B A2.5B: $0.05 per 1M tokens$0.05DeepSeek V4 ProDeepSeek V4 Pro: $0.435 per 1M tokens$0.435Gemini 3.7 FlashGemini 3.7 Flash: $0.75 per 1M tokens$0.75Mistral Medium 3.5Mistral Medium 3.5: $1.50 per 1M tokens$1.50Grok 4.6Grok 4.6: $2.00 per 1M tokens$2.00Qwen3.8 MaxQwen3.8 Max: $2.00 per 1M tokens$2.00Claude Opus 5Claude Opus 5: $5.00 per 1M tokens$5.00GPT-5.6 SolGPT-5.6 Sol: $5.00 per 1M tokens$5.00
Output price vs. maker flagships ($/1M tokens)
Mellum2 12B A2.5BMellum2 12B A2.5B: $0.10 per 1M tokens$0.10DeepSeek V4 ProDeepSeek V4 Pro: $0.87 per 1M tokens$0.87Gemini 3.7 FlashGemini 3.7 Flash: $3.75 per 1M tokens$3.75Grok 4.6Grok 4.6: $6.00 per 1M tokens$6.00Qwen3.8 MaxQwen3.8 Max: $6.00 per 1M tokens$6.00Mistral Medium 3.5Mistral Medium 3.5: $7.50 per 1M tokens$7.50Claude Opus 5Claude Opus 5: $25.00 per 1M tokens$25.00GPT-5.6 SolGPT-5.6 Sol: $30.00 per 1M tokens$30.00

On the record

Model id
JetBrains/Mellum2-12B-A2.5B-Instruct
Context window
131K tokens
Max output
131K tokens
Input modalities
text
Output modalities
text
Reasoning
no
Tool calls
yes
Open weights
yes
Knowledge cutoff
—
Released
2026-06-01
Last updated
2026-06-01
Provider docs
docs.wandb.ai/guides/integrations/inference/

Back of the envelope

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