Alternative · ChatGPT
A ChatGPT Plus alternative with GPT-6 Astra in the chat
ChatGPT is OpenAI's chat app. As of September 25, 2026, ChatGPT Plus offers GPT-6 Astra only in Work and Codex, and GPT-6 Sol isn't in its chat yet (sources below). llmwise has both in the chat: Astra up to 31 messages a month on Pro ($20), Sol up to 125, next to Claude, Gemini, DeepSeek, Grok, Kimi, GLM, and Mistral.
ChatGPT's plans, as of September 25, 2026
ChatGPT Plus offers GPT-6 Astra only in Work and Codex, not in ChatGPT's regular chat.
Checked : OpenAI Help Center.
In Work and Codex, OpenAI estimates 5–45 local GPT-6 Astra messages every 5 hours on Plus, and says these aren't fixed limits and weekly limits may also apply.
Checked : OpenAI Help Center.
In ChatGPT's regular chat, Astra appears as “GPT-6 Pro”, on eligible Pro, Business and Enterprise plans, not on Plus.
Checked : OpenAI Help Center.
GPT-6 Sol and GPT-6 Luna, which OpenAI launched on September 22, 2026, aren't yet available in ChatGPT's Chat mode.
What $20 a month gets you
| What | ChatGPT Plus ($20) | Claude Pro ($20) | Google AI Pro ($19.99) | llmwise Pro ($20) |
|---|---|---|---|---|
| GPT-6 Astra | Not in regular chat: only in Work and Codex | No | No | In the chat: up to 31 a month |
| Limit published as a number | No: an estimated 5–45 local Astra messages every 5 hours | No: 5-hour sessions and a weekly cap | No: compute-based since May 17, 2026 | Yes: per model, shown before you send |
| Messages on one AI, if it's all you use (our reading) | More | More | More | Fewer |
Other plans as of September 25, 2026; they can change without notice. Want the most messages from one AI? Its own plan is better value. Want the right AI for each question, with the count up front? That's llmwise.
Checked : OpenAI Help Center, Anthropic Help Center (Pro plan usage), Google Gemini Help (compute-based limits) and PCWorld.
Monthly list prices as of September 2026: ChatGPT Plus, Claude Pro, Google AI Pro.
What you might be looking for
GPT-6, in a normal chat
GPT-6 Astra (up to 31 a month on Pro), GPT-6 Sol (up to 125, and in the free trial) and GPT-6 Luna (60 a day, an everyday model), in the same chat as every other model.
Claude too, Fable 5.1 included
Claude Fable 5.1 (up to 31 a month) and Claude Opus 5.5 (up to 62), from the same allowance as GPT-6 Astra: mix them however you like.
Knowing what a message costs
You see how many messages you have left on the model you pick before you send, and that's exactly what's counted, however long the reply.
Getting work done in the chat
Attach PDFs, images and text files; get documents that keep every version; run small HTML apps in the side panel; search the web with sources.
The models in llmwise
Pick a model for each message; the badge shows how many messages Pro gets on it.
Claude by Anthropic
- Claude Fable 5.131/mo on Pro
- Claude Opus 5.562/mo on Pro
- Claude Sonnet 5.5125/mo on Pro
- Claude Sonnet 5125/mo on Pro
- Claude Haiku 4.5250/mo on Pro
- Claude Haiku 5.560/day on Pro
GPT by OpenAI
- GPT-6 Astra31/mo on Pro
- GPT-6.1 Sol125/mo on Pro
- GPT-6 Sol125/mo on Pro
- GPT-6 Luna60/day on Pro
Gemini by Google
- Gemini 3.1 Pro (preview)125/mo on Pro
- Gemini 3.8 Flash250/mo on Pro
DeepSeek by DeepSeek
- DeepSeek V4 Pro250/mo on Pro
- DeepSeek V4.1 Flash60/day on Pro
Grok by xAI
- Grok 4.7250/mo on Pro
Kimi by Moonshot
- Kimi K3125/mo on Pro
GLM by Z.ai
- GLM 5.3250/mo on Pro
- GLM 5.3 Flash60/day on Pro
Mistral by Mistral
- Mistral Large 4250/mo on Pro
What else is in the chat
Files
Attach PDFs (up to 100 pages), images and text files, up to 10 a message.
Documents
Drafts, code and tables open beside the chat as documents that keep every version; text downloads as PDF, Word or Markdown, tables as Excel or CSV.
Small apps
Ask for a calculator or a small tool and it runs live as an HTML app in the side panel.
Web search
Answers can search the web and cite their sources. On Free, web search works inside your 5 trial messages; on a paid plan each search counts as one more message of the model in use.
Personas and skills
Save instructions as a persona with its own default model, or add skills the model can use.
Paid-plan tools
On a paid plan: research reports (counting as 15 Claude Haiku 4.5 messages Standard, 75 Claude Haiku 4.5 messages Deep), code runs in a sandbox (1 Claude Haiku 4.5 message a run), backend apps (5 Claude Haiku 4.5 messages per started 10 minutes), images (from 1 Claude Haiku 4.5 message an image, by model) and MCP servers.
Plans
Monthly, cancel anytime. A message's price is fixed before you send it.
| Plan | Price | Everyday models | A month on the other models |
|---|---|---|---|
| Free | $0 | A one-time trial of 5 messages | The same 5, also on Claude Sonnet 5.5, Claude Sonnet 5, Claude Haiku 4.5, GPT-6.1 Sol, GPT-6 Sol, Gemini 3.1 Pro (preview), Gemini 3.8 Flash, DeepSeek V4 Pro, Grok 4.7, Kimi K3, GLM 5.3, and Mistral Large 4; one of them can be on Claude Opus 5.5 |
| Pro | $20 a month + applicable tax, shown before you pay | 60 a day | 31 messages on Claude Fable 5.1 or GPT-6 Astra; 62 on Claude Opus 5.5; 125 on Claude Sonnet 5.5-class models; or 250 on Claude Haiku 4.5-class models |
| Max | $50 a month + applicable tax, shown before you pay | 120 a day | 100 messages on Claude Fable 5.1 or GPT-6 Astra; 200 on Claude Opus 5.5; 400 on Claude Sonnet 5.5-class models; or 800 on Claude Haiku 4.5-class models |
| Ultra | $100 a month + applicable tax, shown before you pay | 200 a day | 225 messages on Claude Fable 5.1 or GPT-6 Astra; 450 on Claude Opus 5.5; 900 on Claude Sonnet 5.5-class models; or 1,800 on Claude Haiku 4.5-class models |
| Studio | $200 a month + applicable tax, shown before you pay | 200 a day | 500 messages on Claude Fable 5.1 or GPT-6 Astra; 1,000 on Claude Opus 5.5; 2,000 on Claude Sonnet 5.5-class models; or 4,000 on Claude Haiku 4.5-class models |
Every limit is published. Paid plans also have a monthly fair-use limit on AI cost: Pro $7.50, Max $20, Ultra $42, Studio $85. Using every message on your plan at typical sizes stays under it; very large messages and heavy research use it faster. Every limit, explained.
Every model's price per message is on the pricing page.
Switching from ChatGPT
Sign in with your email: we send a link, there's no password to set.
Pick a model for each message from the picker: GPT-6 Luna for everyday questions, GPT-6 Astra when an answer matters most.
Recreate your custom instructions as a persona, with a default model.
Attach the files you'd have uploaded before: PDFs, images and text files.
When llmwise isn't the right fit
If you only want OpenAI's models and ChatGPT's own features (voice, its apps, Codex), ChatGPT is built for that, and gives you more GPT for the money.
Switching from ChatGPT: questions
Does llmwise have GPT-6?
Yes: GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol, and GPT-6 Luna. GPT-6 Astra gets up to 31 messages a month on Pro, GPT-6 Sol up to 125 and GPT-6 Luna 60 a day; GPT-6 Sol and GPT-6 Luna are in the free trial too. Use them next to the other families, even in the same chat.
Why not just ChatGPT Plus?
If you mostly use GPT and chat a lot, ChatGPT Plus gives you more GPT for $20, plus voice and OpenAI's own apps. llmwise is for using Claude, GPT, Gemini and more under one plan, with one memory and the count shown before you send.
Can I bring my ChatGPT history?
No, there's no importer. Start a new chat, and paste in anything you want to carry over.
Can llmwise make images, or talk?
On a paid plan, yes: with image models from OpenAI, Google, ByteDance, Black Forest Labs, Ideogram, and Alibaba through kie.ai, each at its own price, from 1 Claude Haiku 4.5 message an image. There's no voice mode.
Is llmwise free?
To try it: Free is a one-time trial of 5 messages on every model but Claude Fable 5.1 and GPT-6 Astra (one of them can be on Claude Opus 5.5), with no card. It doesn't refill; paid plans add every model, everyday messages every day and a monthly allowance for the rest.
Leave ChatGPT, keep GPT
Keep GPT: up to 31 GPT-6 Astra messages a month on llmwise Pro ($20), beside Claude, Gemini and the rest. Free is 5 messages, once, with no card.