.env.example

# AI Providers (add at least one)
GOOGLE_API_KEY=                    # Google Gemini
ANTHROPIC_API_KEY=                 # Anthropic Claude
OPENAI_API_KEY=                    # OpenAI
OPENROUTER_API_KEY=                # OpenRouter (200+ models)

# Channels (enable the ones you want)
TELEGRAM_BOT_TOKEN=                # Get from @BotFather on Telegram
DISCORD_BOT_TOKEN=                 # Get from discord.com/developers

# Web Search (optional, enables web_search tool)
BRAVE_API_KEY=                     # brave.com/search/api
SERPER_API_KEY=                    # serper.dev

# Behaviour
TRIGGER_WORD=@rem                 # Trigger word for groups

# ── QUICK MODEL REFERENCE ────────────────────────────────────────────────────
# Anthropic (ANTHROPIC_API_KEY):
#   claude-haiku-4-5-20251001   nano  — $0.80/$4 per MTok
#   claude-sonnet-4-6           std   — $3/$15 per MTok
#   claude-opus-4-6             pro   — $5/$25 per MTok
#
# Google (GOOGLE_API_KEY via ai.google.dev):
#   gemini-2.5-flash-lite       nano  — cheapest, 1M ctx
#   gemini-2.5-flash            std   — workhorse, 1M ctx, thinking capable
#   gemini-2.5-pro              pro   — best Google model, 1M ctx
#   gemini-3.1-pro-preview      pro   — latest preview, 1M ctx
#
# OpenRouter (OPENROUTER_API_KEY):
#   meta-llama/llama-3.1-8b-instruct   nano  — free tier available
#   meta-llama/llama-3.3-70b-instruct  std   — solid GPT-4 level
#   meta-llama/llama-4-maverick        std   — latest Meta, strong tools
#   deepseek/deepseek-chat-v3-0324     std   — 90% of frontier at 1/50th cost
#   mistralai/mistral-large-2          std   — EU-hosted, GDPR-safe
#   mistralai/devstral-2               std   — 262K ctx, coding agent
#   qwen/qwen3-235b-a22b               std   — MoE, tool-calling confirmed
#   deepseek/deepseek-r1               pro   — chain-of-thought reasoning