The best AI model overall right now is Google's Gemini 4 Carbon: #1 on the LMArena Text leaderboard (board published November 9, 2026), with Gemini 4 Argon #2 and Claude Opus 5.5 #3. Pick by job: Claude (Opus 5.5, or the new Fable 5.2) for coding and agents, GPT-6 Astra in ChatGPT for the broadest everyday assistant, Grok 4.7 for live news and the cheapest frontier API output, DeepSeek V4.1 Flash for the lowest API price with open weights, and Qwen3.8-27B to run a strong model on your own GPU.
Best AI models in 2026
Gemini
Gemini 4 Carbon is #1 and Gemini 4 Argon #2 on LMArena Text (November 9, 2026). API $2/$10 per million input/output tokens until November 30, then $4/$20. In the Gemini app, Argon comes with Google AI Pro ($19.99 a month) and Carbon with AI Ultra (from $99.99).
Claude
Claude Fable 5.2 (released November 9) is #1 on LMArena WebDev and Opus 5.5 is #3 on LMArena Text. API: Sonnet 5.5 $2/$10, Opus 5.5 $4/$20, Fable 5.2 $8/$40, all with 1M-token context. Claude Pro is $20 a month ($17 billed yearly), Max from $100.
ChatGPT
GPT-6 Astra is OpenAI's flagship ($10/$50, the most expensive API here); GPT-6.1 Sol gives near-Astra results for $2/$10. ChatGPT wraps them in the widest app: voice, images, files and agents. Go $8, Plus $20, Pro from $100 a month.
Grok
Grok 4.7 searches X and the web in real time. API $2 input and $6 output per million tokens (under 200K-token prompts), the lowest output price of the big four, with a 500K context. Paid plans from $8 a month through The X Subscription.
DeepSeek
DeepSeek V4.1 Flash is $0.30/$1.20 at peak and half that off-peak, with a 1M context and MIT-licensed weights; V4 Pro is $1.32/$3.96. The hosted service stores data in China.
Qwen
Qwen3.8-27B is Apache 2.0 and fits one 24 GB graphics card at 4-bit, so prompts never leave your machine. It trails the closed models above, but costs nothing per token.
Questions buyers ask
What is the best AI model right now?
Gemini 4 Carbon leads LMArena's Text leaderboard (board published November 9, 2026), ahead of Gemini 4 Argon and Claude Opus 5.5. The gaps between the top three are within the leaderboard's margin of error, so for coding and agent work Claude is the stronger pick, and for an all-round app with voice and images ChatGPT is.
Which AI model is best for coding?
Claude. Claude Fable 5.2 is #1 on LMArena's WebDev leaderboard (November 10, 2026), and Claude Opus 5.5 covers most coding work at half Fable's price ($4/$20 vs $8/$40 per million tokens). For a cheaper coding model, OpenAI's GPT-6.1 Sol and Claude Sonnet 5.5 both cost $2/$10.
What is the cheapest good AI model?
DeepSeek V4.1 Flash: $0.30 input and $1.20 output per million tokens at peak, half off-peak. From the US labs, Claude Haiku 5.5 and GPT-6 Luna both start at $0.10/$0.50, and Gemini 3.8 Flash ($0.75/$3.75) has a free tier in Google AI Studio.
What is the best open-source AI model?
Strictly these are open-weight models. DeepSeek V4.1 Flash (MIT license) is the strongest, but it is a very large mixture-of-experts model that needs a multi-GPU server. Qwen3.8-27B (Apache 2.0) is the best you can run on one 24 GB GPU. Meta's Llama 4 has the biggest tooling ecosystem but its own community license, so read the terms before commercial use.
Is Gemini better than ChatGPT?
On LMArena's blind votes, Gemini 4 Carbon currently ranks above OpenAI's models, and its API is cheaper than GPT-6 Astra ($2/$10 until November 30 vs $10/$50). ChatGPT is still the more complete app, with the largest set of features and integrations; Gemini is the better fit if you live in Gmail, Docs and Android.
Can I trust AI leaderboards?
As a shortlist, yes. LMArena ranks by human preference in blind votes, which rewards helpful, well-formatted answers; it does not measure your task. Ranks change weekly, new models need days of votes before they appear, and close scores are ties. Test the top two or three on your own prompts before you commit.
Choosing an app rather than a model? See the best AI chatbots.