1. Kimi
Model tested: Kimi K3.1 Pro
Moonshot AI's assistant with agents, deep research and slides, on a free tier and four paid tiers.
NS-ID 99.3Test lab: 10 of 10Free plan
Plans
- Adagio: Free
- Plus: $180 per year
- Pro: $372 per year
- Max: $948 per year
The best ChatGPT alternative, picked from our own tests
If you want a ChatGPT alternative, this list ranks 9 AI chat assistants we tested ourselves. Each one shows its NS-ID Indonesian score, how many of our everyday chat prompts it passed, and plan prices copied from the official pricing page with the date we checked it.
Tested on October 25, 2026 · Prices checked October 25, 2026
Short answer
Our top tier of ChatGPT alternatives right now is Kimi, Perplexity, Claude, Grok, Qwen Chat and DeepSeek: their NS-ID Indonesian scores from the run on October 25, 2026 are within 3 points of each other, which is within normal run to run variation, so we list them by entry price. ChatGPT itself scored 96.4 and passed 8 of 10 test-lab chat prompts; 9 of the 9 alternatives have a free plan.
All tested alternatives at a glance
Swipe to see more columns
| Tier | Tool | NS-ID score | Test lab | Free plan | Cheapest paid plan |
|---|---|---|---|---|---|
| 1 | KimiKimi K3.1 Pro | 99.3 | 10 of 10 | Yes | Plus, $180 per year |
| 1 |  GrokGrok 4.7 | 98.0 | 10 of 10 | Yes | Plus, IDR 139,000 per month |
| 1 |  ClaudeClaude Sonnet 5.5 | 97.6 | 10 of 10 | Yes | Pro, $20 per month |
| 1 |  Qwen ChatQwen3.8 Max (0902) | 97.6 | 10 of 10 | Yes | Not stated |
| 1 |  PerplexityPerplexity Sonar | 97.1 | 8 of 10 | Yes | Pro (annual), $17 per month |
| 1 | DeepSeekDeepSeek V4 Pro | 96.8 | 10 of 10 | Yes | Not stated |
| 2 |  Google Gemini (Nano Banana)Gemini 3.8 Flash | 93.0 | 10 of 10 | Yes | Google AI Plus, IDR 75,000 per month |
| 3 | Mistral Vibe (formerly Le Chat)Mistral Medium 3.5 | 89.6 | 10 of 10 | Yes | Pro (Education), $5.99 per month |
| 3 |  Meta AILlama 4 Maverick | 88.2 | 10 of 10 | Yes | Not stated |
Only tools that are listed in our directory, have a price checked on the official page in the last 90 days, and have results from the same NS-ID suite version (NSID-V1) and our test-lab chat prompts are ranked. Scores are dated test results of the API route named, not a judgement of the company.
Each alternative in detail
2. Grok
Model tested: Grok 4.7
xAI's assistant with live web and X search, plus image and video generation.
NS-ID 98.0Test lab: 10 of 10Free plan
Plans
- Plus: IDR 139,000 per month
- Premium: IDR 589,000 per month
- Super: IDR 1,949,000 per month
- Ultra: IDR 3,899,000 per month
3. Claude
Model tested: Claude Sonnet 5.5
Anthropic's AI assistant for chat, writing, files and coding, with Free, Pro and Max plans.
NS-ID 97.6Test lab: 10 of 10Free plan
Plans
- Free: Free
- Pro: $20 per month
- Max: $100 per month
- Pro (annual): $200 per year
4. Qwen Chat
Model tested: Qwen3.8 Max (0902)
Free chat assistant from Alibaba's Qwen team with search, deep research and media generation.
NS-ID 97.6Test lab: 10 of 10Free plan
5. Perplexity
Model tested: Perplexity Sonar
AI answer engine with cited sources and a choice of models from several labs.
NS-ID 97.1Test lab: 8 of 10Free plan
Plans
- Free: Free
- Pro (annual): $17 per month
- Max (annual): $167 per month
6. DeepSeek
Model tested: DeepSeek V4 Pro
Free chat assistant from DeepSeek with DeepThink and Search modes.
NS-ID 96.8Test lab: 10 of 10Free plan
7. Google Gemini (Nano Banana)
Model tested: Gemini 3.8 Flash
Google AI assistant whose app generates and edits images with the Nano Banana models.
NS-ID 93.0Test lab: 10 of 10Free plan
Plans
- Gratis: Free
- Google AI Plus: IDR 75,000 per month
- Google AI Pro: IDR 309,000 per month
- Google AI Ultra (5x): IDR 1,579,000 per month
8. Mistral Vibe (formerly Le Chat)
Model tested: Mistral Medium 3.5
Mistral AI's assistant for chat, search and coding, renamed from Le Chat to Vibe.
NS-ID 89.6Test lab: 10 of 10Free plan
Plans
- Free: Free
- Pro (Education): $5.99 per month
- Pro: $14.99 per month
- Team: $24.99 per month
9. Meta AI
Model tested: Llama 4 Maverick
Meta's assistant on the web, in its own app, and inside WhatsApp, Instagram, Messenger and Facebook.
NS-ID 88.2Test lab: 10 of 10Free plan
For reference: ChatGPT
ChatGPT
General AI chat assistant from OpenAI with Free, Go, Plus and Pro plans.
NS-ID 96.4Test lab: 8 of 10Model tested: ChatGPT (chat-latest)
Swipe to see more columns
| Plan | Price | Source |
|---|---|---|
| Free | Free | Source:chatgpt.com, checked October 25, 2026 |
| Go | IDR 75,000 per month | Source:chatgpt.com, checked October 25, 2026 |
| Plus | IDR 349,000 per month | Source:chatgpt.com, checked October 25, 2026 |
| Pro | IDR 1,889,000 per month | Source:chatgpt.com, checked October 25, 2026 |
Also in our directory, not tested yet
These tools are listed in the directory but have not been through our tests yet, so they are not ranked.
HuggingChatNot testedFull profile- Microsoft CopilotNot testedFull profile
- PiNot testedFull profile
PoeNot testedFull profile
How we picked these alternatives
- Only tools that are listed in our directory, have a price checked on the official page in the last 90 days, and have results from the same NS-ID suite version (NSID-V1) and our test-lab chat prompts are ranked.
- Ranking order is the NS-ID total score; alternatives within 3 points of the top score of their tier share a tier. Scores are not influenced by payment, sponsorship or affiliate links.
- The tests call the API model behind or closest to each app, not the app itself. Answers in the app can differ (system prompt, web search, memory).
Frequently asked questions
What is the best free ChatGPT alternative?
Among the tools we tested that have a free plan, Kimi had the highest NS-ID score (99.3) on October 25, 2026. Free plan limits change often, so check the plan list on each card.
Which ChatGPT alternative writes the best Indonesian?
Kimi, Perplexity, Claude, Grok, Qwen Chat and DeepSeek formed the top tier in our NSID-V1 run (within 3 points of the best NS-ID total, 99.3 out of 100). NS-ID covers comprehension, formal writing, tone and register, translation, local knowledge and following instructions.
Are these tests done in the apps?
No. We call the model behind or closest to each app through its API, with fixed prompts and saved outputs. The app version can behave differently because of its own system prompt, search and memory features.
How often are prices updated?
Every price on this page shows the date we copied it from the official pricing page. Anything older than 90 days is marked as needing a re-check and drops out of the ranking.