TokenCalculator April 2026 Update: New Models, Dark Mode Fix, X Profile & Community Features

April 2026 has been the most active month in TokenCalculator's history. From a complete dark mode overhaul to the addition of 15+ cutting-edge AI models and the launch of our community submission system, there is a lot to cover. Here is everything that shipped.

New Models Added

The model database has been updated with the latest releases from every major provider. The pricing table, token calculator, and comparison tools now include:

Claude Opus 4.6 (1M context): Anthropic's flagship model with a 1 million token context window — ideal for large codebase analysis and long-document tasks
GPT-5.4: OpenAI's latest production model with improved reasoning and multimodal capabilities
Gemini 3.1 Pro & Flash: Google's updated Gemini line with Google Search grounding built in
Llama 4 Maverick & Scout: Meta's open-weight frontier models — Maverick competes with paid APIs at zero API cost
Grok 3.5: xAI's latest, strong on real-time web-grounded tasks
DeepSeek V4: Updated Chinese frontier model with excellent reasoning-per-dollar
Mistral Large 3: Mistral's updated flagship for European deployments
Qwen 3: Alibaba's multilingual model, particularly strong on Chinese and Asian language tasks

All models include up-to-date pricing, context window sizes, and capability tags. You can compare them all on the models page.

Dark Mode — Fixed Everywhere

Dark mode now works correctly on every page of the site — including model detail pages, tool pages, blog posts, and all subpages. Previously, the dark setting was lost when navigating away from the homepage. This has been fixed with a cookie-based persistence layer: your theme preference is now stored in a cookie and applied server-side on every page load, so there are no more flashes of light mode.

UI Improvements

A series of visual and usability improvements shipped this month:

Clickable model rows: Every row in the pricing table now links directly to that model's detail page
New favicon: The TokenCalculator favicon now features a bold red background with white TC text — more visible in browser tabs and bookmarks
Settings modal refresh: The model picker in the settings overlay now lists all current 2026 models, with Gemini 3.1 Pro as the new default
Homepage order: The "Recent Models" section now correctly shows the newest additions at the top
Hero text updated: The homepage headline is now "Token Calculator for LLMs" with an updated subtitle listing current models

X (Twitter) Profile Launched

TokenCalculator is now on X. Follow @tokencalculator for model pricing updates, new feature announcements, AI tips, and community highlights. We will be posting whenever new models drop and pricing changes — so following is the fastest way to stay current without checking the site every day.

Community Content Submission

The biggest new feature this month: anyone can now submit prompts and AI tips for publication on TokenCalculator. Visit the Submit page to share your best work. All submissions are reviewed by our team before publication, and approved content is credited to the submitter by name.

We are actively looking for:

Coding prompts (debugging, refactoring, code generation, SQL, etc.)
Writing and marketing prompts
Practical AI tips and workflow tricks
Model-specific optimization techniques

Expanded AI Tips & Prompts Library

The AI Content Hub has grown significantly. The tips library now covers more advanced topics including:

Extended thinking / reasoning mode usage patterns
Prompt caching strategies for cost reduction
Context management for long agentic sessions
Model-specific parameter tuning (temperature, top-p, top-k)
Multi-step tool use and function calling best practices

The prompts library has also expanded with new additions across coding, data analysis, SEO, and business strategy categories.

Glossary Expansion

The AI Glossary has been updated with 20+ new terms covering modern concepts including: Vibe Coding, GGUF quantization, Jailbreaking, Moat (in AI strategy), One-Shotting, Prompt Leaking, Context Stuffing, AI Slop, Knowledge Distillation, and more.

New Info Pages

Three new reference pages are now live under the Info menu:

LLM Leaderboard — ranked comparison of top models across reasoning, coding, math, and vision benchmarks
AI News — curated news and announcements from the AI industry
Prompt Engineering Guide — beginner to advanced guide covering all major prompting techniques

Bug Fixes

Fixed: i18n translation keys displaying as raw text (nav.home, home.hero.title) — caused by the dev server not serving JSON files as static assets
Fixed: CSRF validation failures on newsletter subscribe and comment forms
Fixed: Price comparison tool showing costs 1000× too high
Fixed: Model detail URLs with dots (e.g. /model/gpt-5.4) returning 404

Stay tuned — more updates are coming throughout April. If you have feedback, find us on X at @tokencalculator or use the contact page.