Switching to Claude Code GLM-4.6 easily

This explains how to have a dedicated GLM-4.6 Claude Code instance:

On Linux (possibly also MacOS)

Put your API key in

~/.zai_api_key

1	~/.zai_api_key

Paste this to

.local/bin/claude-glm

1	.local/bin/claude-glm

#!/usr/bin/env zsh
set -euo pipefail

# Read Z.AI key (required for GLM endpoint)
if [[ -z "${ZAI_API_KEY:-}" ]]; then
  if [[ -r "${HOME}/.zai_api_key" ]]; then
    export ANTHROPIC_AUTH_TOKEN="$(< "${HOME}/.zai_api_key")"
  else
    print -u2 "Error: set ZAI_API_KEY or create ~/.zai_api_key"
    exit 1
  fi
else
  export ANTHROPIC_AUTH_TOKEN="$ZAI_API_KEY"
fi

# Point ONLY this process to Z.AI’s Anthropic-compatible endpoint
export ANTHROPIC_BASE_URL="https://api.z.ai/api/anthropic"

# Map Claude “tiers” to GLM defaults (per Z.AI’s guide)
export ANTHROPIC_DEFAULT_OPUS_MODEL="glm-4.6"
export ANTHROPIC_DEFAULT_SONNET_MODEL="glm-4.6"
export ANTHROPIC_DEFAULT_HAIKU_MODEL="glm-4.5-air"

# Recommended long timeout from the guide
export API_TIMEOUT_MS="${API_TIMEOUT_MS:-3000000}"

# Hand off to Claude Code
exec claude "$@"

#!/usr/bin/env zsh

set -euo pipefail

# Read Z.AI key (required for GLM endpoint)

if [[ -z "${ZAI_API_KEY:-}" ]]; then

if [[ -r "${HOME}/.zai_api_key" ]]; then

export ANTHROPIC_AUTH_TOKEN="$(< "${HOME}/.zai_api_key")"

else

print -u2 "Error: set ZAI_API_KEY or create ~/.zai_api_key"

exit 1

else

export ANTHROPIC_AUTH_TOKEN="$ZAI_API_KEY"

# Point ONLY this process to Z.AI’s Anthropic-compatible endpoint

export ANTHROPIC_BASE_URL="https://api.z.ai/api/anthropic"

# Map Claude “tiers” to GLM defaults (per Z.AI’s guide)

export ANTHROPIC_DEFAULT_OPUS_MODEL="glm-4.6"

export ANTHROPIC_DEFAULT_SONNET_MODEL="glm-4.6"

export ANTHROPIC_DEFAULT_HAIKU_MODEL="glm-4.5-air"

# Recommended long timeout from the guide

export API_TIMEOUT_MS="${API_TIMEOUT_MS:-3000000}"

# Hand off to Claude Code

exec claude "$@"

Run claude-glm and when you exit you can run claude normally, like nothing ever happened.

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