Reach C1 (Advanced) in a Language

Proof required

Share your essay or analytical piece (600+ words, written directly in the target language on an abstract topic you chose). Share the written feedback from a native or near-native speaker (C1+ in the target language) naming at least three specific phrases or constructions that could be more natural or idiomatic, and at least one structural or register observation. Write 100 words on what you plan to revise based on this feedback.

What gets checked

• Essay is 600+ words on an abstract topic that requires analysis or argument — a description of facts or events is not sufficient; interpretation, comparison, evaluation, or argument is required
• Feedback names specific phrases or constructions in your text — general praise or vague suggestions ('a bit unnatural in places') does not meet the standard
• Feedback reviewer is a native speaker or a verified C1+ speaker of the target language — feedback from a fellow learner at the same level is not valid

Common mistakes

• Writing in your first language and then translating — the result reads as translated rather than produced in the target language; native speakers notice immediately and the feedback will reflect this rather than genuine C1 gaps
• Using AI writing tools to improve the draft before the native-speaker review — the feedback will then be about the AI's gaps rather than yours; the point of M1 is to see YOUR current ceiling

Resources

What a verifier looks for

• Ask the submitter whether the essay was written directly in the target language or drafted in another language first — translated writing has a characteristic structure and vocabulary pattern that is detectable; if the feedback reviewer is a native speaker, ask them whether it read as translated
• Confirm the feedback reviewer is a native speaker or demonstrated C1+ speaker — a fellow learner providing encouragement is not a valid C1 writing critique; ask how the reviewer's own proficiency was established
• The 100-word revision note is more diagnostic than the essay itself — a submitter who cannot name any specific thing they plan to change has not read the feedback critically

Proof required

Share the audio or video recording of a 30+ minute conversation in the target language with a native or near-native speaker. The conversation topic must have been provided by the partner on the day of the recording — neither party saw the topic in advance. Both sides of the conversation must be audible. Include a written statement from the conversation partner confirming: the topic was not shared in advance, the conversation was unscripted, and their honest assessment of your fluency and any notable gaps they observed.

What gets checked

• Recording is 30+ minutes with both sides of the conversation audible throughout — a recording where the partner cannot be heard does not demonstrate conversation, only monologue
• The conversation covers at least two distinct topic areas without obvious pre-prepared talking points — a conversation that stays narrowly on one topic the submitter is clearly very ready for may indicate preparation
• Written confirmation from the conversation partner is included and addresses three things: whether the topic was agreed in advance, whether the conversation was scripted, and a specific fluency assessment

Common mistakes

• Agreeing the topic in advance — even without sharing notes, knowing the topic allows the submitter to prepare mentally, which defeats the spontaneity that the milestone tests; the partner must choose the topic on the day without prior notice
• Editing the recording to remove hesitations or long pauses — authentic C1 includes natural disfluency; editing to present only smooth passages misrepresents actual fluency

Resources

What a verifier looks for

• Confirm with the conversation partner that the topic was not shared in advance — ask them directly; a submitter who proposed the topic but calls it 'unannounced' is not meeting the milestone standard
• Listen to a random five-minute segment of the recording; if the submitter is speaking in grammatically simple structures throughout without complex subordinate clauses, idiomatic expressions, or nuanced vocabulary, the recording may reflect B2 rather than C1 production
• The partner's fluency assessment is the most diagnostic element of the written confirmation — ask whether they would be comfortable having a complex professional or academic conversation with the submitter in the target language; yes or no with reasons is the expected response

Proof required

Share a link or title of a 20+ minute piece of authentic target-language media not created for language learners (news broadcast, documentary, academic lecture, or a podcast by native speakers for native speakers). Share a 300–400 word analytical summary in the target language covering: (a) the main argument, (b) one specific implicit meaning, irony, or subtext you identified, and (c) one observation about the speaker's register or tone. Share a written confirmation from a native or near-native speaker who has accessed the same source material, confirming that your main-argument summary is accurate and that the implicit element you identified is genuinely present.

What gets checked

• Source material is authentic native-speaker content not created for language learners — 'slow news' services, learner podcasts, or simplified subtitle content do not qualify; the material should be indistinguishable from what a native speaker would consume
• Summary names a specific implicit element (irony, understatement, assumed knowledge, implied critique) and explains how you identified it in the source material
• Native speaker confirmation addresses two things: factual accuracy of the main-argument summary AND whether the implicit element identified is genuinely present in the source

Common mistakes

• Choosing language-learning media or simplified content rather than authentic native-speaker material — the challenge of C1 listening is handling real connected speech, cultural reference, and implicit meaning at native pace; learner-oriented content is not a valid substitute
• Summarising only the surface content without attempting to identify implicit meaning — the distinction between B2 and C1 comprehension is exactly this ability to go beyond the literal

Resources

What a verifier looks for

• Confirm the source material is authentic native-speaker content — ask the submitter what platform or broadcaster it came from and whether it was created for language learners; the answer should name a national broadcaster or a mainstream media outlet, not a language-learning service
• The implicit element must be named specifically — 'the tone was a bit ironic' is not sufficient; a C1 response names what the irony was directed at, what assumption it relied on, and what the speaker was implying rather than stating
• The native-speaker reviewer's confirmation is the gate — a submitter who identifies a main argument accurately but whose 'implicit element' the native speaker cannot locate in the source material has not met the milestone standard