WhichBot › Alternatives › Alternatives to GPT-6.1 Sol
Last checked Oct 28, 2026 · plain English · no paid picks
Best alternatives to GPT-6.1 Sol
Stay with GPT-6.1 Sol if you want OpenAI's current main model for paid ChatGPT plans and for developers.
Try Claude Opus 5.5 if you need the strongest Claude for long documents, writing and coding.
Try Gemini 4 Argon if you want Google's newest top model, which reads text, pictures, video and audio.
Try Grok 4.7 if you want xAI's own pick for chat and code.
The alternatives
AI models (for developers)
Claude Opus 5.5
Anthropic's top model · Anthropic
Pick it if you need the strongest Claude for long documents, writing and coding.
Price: Developer price: $4 in and $20 out per million tokens
GPT-6.1 Sol vs Claude Opus 5.5 · Checked Oct 28, 2026
AI models (for developers)
Gemini 4 Argon
Google's newest top model · Google
Pick it if you want Google's newest top model, which reads text, pictures, video and audio.
Price: Developer price: $2 in and $10 out per million tokens
GPT-6.1 Sol vs Gemini 4 Argon · Checked Oct 28, 2026
AI models (for developers)
Grok 4.7
xAI's main model · xAI
Pick it if you want xAI's own pick for chat and code.
Price: Developer price: $2 in and $6 out per million tokens
Watch out for: No current events unless search tools are enabled (developer service)
GPT-6.1 Sol vs Grok 4.7 · Checked Oct 28, 2026
AI models (for developers)
Kimi K3.1 Pro
Model from Moonshot AI (China) · Moonshot AI (Kimi)
Pick it if you want a brand-new model aimed at long coding sessions and agent tasks, and can live with launch hiccups.
Price: Developer price: $2 in (output price not verified) per million tokens
Watch out for: Launch had rate-limit and quota problems; Moonshot apologized and reset 25% of subscribers' quota (Oct 25); Input price $2/M is from Simon Willison's Oct 23 post and matches Artificial Analysis; Kimi's own pricing table did not load for us, so it's not verified there. Output price not verified.
Checked Oct 28, 2026
AI models (for developers)
Mistral Large 4
Mistral's largest model (preview) · Mistral
Pick it if you want a European provider's top model with room for very long documents.
Price: Developer price: $1.36 in and $4.18 out per million tokens
Checked Oct 28, 2026
GPT-6.1 Sol next to the top alternatives
| GPT-6.1 Sol | Claude Opus 5.5 | Gemini 4 Argon | |
|---|---|---|---|
| What it is | OpenAI's main model on paid ChatGPT plans | Anthropic's top model | Google's newest top model |
| Made by | OpenAI | Anthropic | |
| Price | Developer price: $2 in and $10 out per million tokens | Developer price: $4 in and $20 out per million tokens | Developer price: $2 in and $10 out per million tokens |
| Good at | Reads up to 1,050,000 tokens at once; Reads: text, image, PDFs | Hector's pick for long documents and writing; Best for: long documents, writing, coding; Reads up to 1,000,000 tokens at once; Reads: text, image, PDFs | Reads up to 1,048,576 tokens at once; Reads: text, image, video, audio, PDFs |
| Privacy | Not listed in our data | Not listed in our data | Paid developer service tier: from Oct 26, 2026, new projects store Generate Content requests by default (store=true); existing projects keep their setting. Opt out with store=false per request or turn off logging in the Logs and Datasets settings |
| Where it runs | ChatGPT Plus/Pro | Claude Pro/Max | Google AI Pro/Ultra |
| Status | Current | Current. Retirement not sooner than Sep 22, 2027. Fast mode (up to ~2.5x faster output, $8/$40 per million tokens) is open to all developer service users since Oct 15, 2026 | Current. Generally available Oct 13, 2026. developer service price doubles Dec 1, 2026: $2/$10 per million tokens through Nov 30, then $4/$20. Not on the developer service free tier. Also in Google Antigravity (desktop app and command line) for Google AI Pro and Ultra subscribers (since Oct 13, per Google's Antigravity blog) |
| Sources | chatgpt.com · models.dev | platform.claude.com · claude.com · models.dev · platform.claude.com (2) · platform.claude.com (3) | gemini.google · models.dev · ai.google.dev · ai.google.dev (2) · antigravity.google |
Related pages
- Claude Opus 5.5 vs GPT-6.1 Sol
- GPT-6.1 Sol vs Gemini 4 Argon
- Grok 4.7 vs GPT-6.1 Sol
- Alternatives to DeepSeek V4.1 Flash
Questions people ask
What is the best alternative to GPT-6.1 Sol?
It depends on what you need. Try Claude Opus 5.5 if you need the strongest Claude for long documents, writing and coding. Try Gemini 4 Argon if you want Google's newest top model, which reads text, pictures, video and audio. Try Grok 4.7 if you want xAI's own pick for chat and code.
Is GPT-6.1 Sol still worth using?
Yes, if you want OpenAI's current main model for paid ChatGPT plans and for developers. Its status in our directory: current.
Are these picks paid for?
No. There are no paid picks, sponsors are always labeled, and WhichBot never takes sponsorship from AI labs.
Facts come from the companies' own pages, linked above, and were last checked Oct 28, 2026. Prices are US and can change. Picks are Hector's: no paid picks, sponsors always labeled, and no sponsorship from AI labs. Our policy.