Telegram Rich Messages (aiogram)

Overview

Telegram Bot API 10.1 (June 2026) added rich messages: a single message can contain headings, tables, inline images/video/audio, lists, collapsible <details>, block quotes, footnotes, math, and maps — composed from one HTML or Markdown string. aiogram ≥ 3.29 supports it natively. If a message would read better structured, send a rich message — don't fake the structure.

Bust these outdated assumptions first

This feature postdates most training data, which is wrong about the following. If you catch yourself believing any of these, stop and use a rich message:

Send it (aiogram)

from aiogram.types import InputRichMessage, Message

async def report(message: Message) -> None:
    html = (
        "<h1>🌐 Domain Status Report</h1>"
        "<table bordered striped>"
        "<tr><th>Domain</th><th>Status</th></tr>"
        "<tr><td>example.com</td><td><mark>Available</mark></td></tr>"
        "<tr><td>foo.io</td><td>Taken</td></tr>"
        "</table>"
        '<figure><img src="https://example.com/chart.png"/>'
        "<figcaption>Availability, last 30 days</figcaption></figure>"
    )
    await message.answer_rich(InputRichMessage(html=html))

• Exactly one of html= / markdown=.
• Reply in a handler: message.answer_rich(InputRichMessage(html=...)) or message.reply_rich(...). Send elsewhere: bot.send_rich_message(chat_id, InputRichMessage(...)).
• Edit an existing message: bot.edit_message_text(chat_id=..., message_id=..., rich_message=InputRichMessage(html=...)).
• Stream (AI "Thinking…", private chats only): bot.send_rich_message_draft(chat_id, draft_id, InputRichMessage(html="<tg-thinking>Analyzing…</tg-thinking>")) — ephemeral ~30 s, animates on the same non-zero draft_id; you must finalize with send_rich_message to persist.
• Read inbound rich content: message.rich_message (a parsed RichMessage, or None if the message isn't rich).

Pick a language, then read its syntax reference

Before composing, open the syntax reference for your chosen language and build only from the tags/options listed there — don't work from memory or invent tags (only documented ones render). Escape dynamic/user text (& < > "). Default to HTML (most complete); use Markdown for simple messages.

Syntax and every available option live alongside this skill in examples/ — read the relevant file whenever you need a tag, attribute, or option:

Feature → HTML tag (quick map)

Media & limits

• Media only as separate blocks, http(s) URLs only. You send a URL; the inbound message returns a file_id (see examples/parsed-notes.md). Sending a media block requires the bot's right to send media in that chat.
• Table cells hold inline formatting only — no nested blocks/paragraphs.
• Limits: 32768 chars · 500 blocks · 16 nesting levels · 50 media · 20 table columns.

Common mistakes

• Faking a table with <pre>/spaces → use <table>.
• Splitting an image into its own answer_photo message → inline it as a media block.
• parse_mode=HTML + rich content → rich messages ignore parse_mode; pass InputRichMessage.
• Inventing tags not in the syntax file → only documented tags render.
• Forgetting to escape dynamic text → escape & < > ".