InternLM2-Chat-20B

InternLM2-Chat-20B is the dialogue-focused 20B checkpoint in the InternLM2 family. Its official card highlights improvements in reasoning, mathematics, code, instruction following, and creative work. It also documents a code interpreter, data analysis, and stronger tool use with multi-step tool calls.

For long inputs, the card documents an inference path of up to 200,000 tokens through LMDeploy. That window belongs to the LMDeploy configuration, while the 20B weight set still determines local resource needs. The chat template and backend are therefore part of the same InternLM2 integration.