What is the Twitter/X character limit?

The standard Twitter/X character limit for unverified accounts is 280 characters. URLs take up 23 characters regardless of length. Posts between 200 and 250 characters consistently earn higher engagement.

What is the LinkedIn post character limit?

LinkedIn allows up to 3,000 characters per regular feed post. However, the critical cutoff hook happens at approximately 140 to 210 characters, after which users must click '...see more'.

What is the ideal length for SEO meta titles and descriptions?

For optimal Google search results, keep page meta titles under 60 characters (around 580 pixels) and meta descriptions between 150 and 160 characters (around 960 pixels) to avoid mobile and desktop truncation.

Multi-Platform Character Compliance

Social Media Character Counter

Craft captions, tweets, and metadata with live constraint meters. Prevent truncation on X, LinkedIn, Instagram, and search engines.

Words

Avg 0 chars/word

Characters

0 no spaces

Sentences

0 words/sent

Paragraphs

0 sents/para

Reading Time 225 wpm

0 sec

Silent reading

Speaking Time 130 wpm

0 sec

Speech / keynote

GOAL TARGET: No target set

Draft 1

Saved to device memory

Keywords:

Type text to view frequency

Reading Level: Ready

Keyword Frequency & Density

Identify recurring terms and calibrate your SEO phrase balance.

Filter stop words (the, is, at...)

PHRASE	OCCURRENCES	DENSITY
Type or paste text above to calculate keyword density.

AI Token Counter & Model Suite (2020 – 2026)

BPE sub-word token metrics, context window capacity, and official API pricing for 45+ AI models.

~0 chars/token 45 Models Supported

Era:

Brand:

Claude 3.7 Sonnet

2025 Anthropic

Hybrid standard & extended reasoning model with state-of-the-art coding and prose capabilities.

Tokenizer: claude

Active Token Count

~0 chars / token

Context Window Usage 0.00%

0 / 200,000

API Input / Output Cost

$0.000000

$3.00 / 1M input $15.00 / 1M output

Browse & Compare Models (45 matching)

Click any card to inspect full details

Historical Era Benchmark: 2020 GPT-3 to 2026 Claude 3.7

How model context, tokenizer efficiency, and API cost per million tokens evolved over 6 years.

ERA	MILESTONE MODEL	CONTEXT	TOKENIZER	YOUR TOKENS	INPUT COST

100% Client-Side Tokenization. Exact byte-pair encoding heuristics calibrated against official model vocabularies.

Publishing Reference

Platform Character Constraints

PLATFORM	MAX LIMIT	CUTOFF / VISIBILITY HOOK
Twitter / X Post	280 chars	Optimal engagement at 200–250 characters.
LinkedIn Post	3,000 chars	Truncated behind "...see more" after ~140–210 chars.
Instagram Caption	2,200 chars	First 125 characters display before "more" prompt.
Google Meta Title	60 chars	Truncated with ellipsis in SERPs past 600px (~60 chars).
Google Meta Description	155 chars	Snippet truncated past 960px (~155–160 chars).

Social Media Character Counter

Keyword Frequency & Density

Exclude References & In-Text Citations

Style & Quality Audit

Filler Words Breakdown

Passive Voice Phrases

AI Token Counter & Model Suite (2020 – 2026)

Claude 3.7 Sonnet

Browse & Compare Models (45 matching)

Historical Era Benchmark: 2020 GPT-3 to 2026 Claude 3.7

Platform Character Constraints

Social Media Character Counter

Keyword Frequency & Density

Platform Character Constraints & SERP Previews

Exclude References & In-Text Citations

Style & Quality Audit

Filler Words Breakdown

Passive Voice Phrases

AI Token Counter & Model Suite (2020 – 2026)

Claude 3.7 Sonnet

Browse & Compare Models (45 matching)

Historical Era Benchmark: 2020 GPT-3 to 2026 Claude 3.7

Set Word Goal

Platform Character Constraints