Best LLM for Bolt.new
Bolt.new generates entire full-stack apps from a prompt and iterates in the browser, so it leans hard on a model's ability to produce coherent, runnable multi-file code — a place where the strongest coding models pull ahead.
Models Bolt.new supports
Bolt.new is a browser-based AI app builder that scaffolds and runs full-stack projects; it leans on frontier coding models (Claude and GPT families) to generate and iterate on whole codebases.
Best value pick
GLM-5.3-Flash
Z.ai (Zhipu AI) · Coding Arena 1607 · about $23.75/month at 100,000 calls. The top-ranked Kimi K3 costs $1,200.00/month — you save $1,176.25/month with GLM-5.3-Flash.
| 1 | GLM-5.3-Flash | 1607 | $23.75 | Z.ai (Zhipu AI) |
| 2 | Qwen3.8 27B | 1593 | $29.50 | Alibaba |
| 3 | DeepSeek V4 Flash | 1580 | $52.50 | DeepSeek |
| 4 | Hunyuan Hy3 | 1513 | $70.00 | Tencent |
| 5 | GPT-5.6 Luna | 1519 | $90.00 | OpenAI |
| 6 | GPT-5.6 Luna (India) (Bedrock)Est. | 1519 | $99.00 | AWS Bedrock |
| 7 | DeepSeek V4 Pro | 1581 | $108.75 | DeepSeek |
| 8 | Gemini 3.6 Flash | 1537 | $300.00 | |
| 9 | Gemini 3.7 Flash | 1587 | $300.00 | |
| 10 | Gemini 3.8 Flash | 1568 | $300.00 | |
| 11 | Muse Spark 1.1 | 1542 | $400.00 | Meta |
| 12 | Muse Spark 1.2 | 1534 | $400.00 | Meta |
Intelligence scores are community Arena ratings from LMArena / arena.ai, used under CC BY 4.0. Snapshot last refreshed 18 September 2026. Scores are a relative signal, not an absolute measure of capability. A Measured score was voted on directly; an Estimated score is inherited from an identical base model (a regional/creator-prefixed hosting duplicate). See our methodology.
Why picking isn’t obvious
Whole-app generation is one of the more demanding coding tasks: the model has to keep many files consistent, so a top coding-Arena model reduces broken builds and re-prompts. But token usage is heavy, so value still matters. We rank the coding-capable models by Arena score and cost to show where quality justifies the spend.
FAQ
What is the best value LLM for bolt?
GLM-5.3-Flash is the cheapest model that still clears our quality bar for this task, at about $23.75/month for 100,000 calls (1,500 in / 500 out). It scores 1607 on the Coding Arena.
Is the most expensive model worth it for this?
Kimi K3 tops the Coding Arena but costs about $1,200.00/month here — roughly $1,176.25/month more than GLM-5.3-Flash for 72 extra Arena points. For most workloads that gap is not worth the premium.
Why do stronger models help more with Bolt.new?
Generating a whole app in one shot stresses multi-file consistency and instruction following, so a higher coding-Arena model produces runnable output more often — fewer wasted regenerations, which also saves tokens on a heavy workload.
Is a cheaper model ever the right call for Bolt-style building?
For small tweaks and simple scaffolds, yes — a mid-tier coding model handles them fine and costs less. Reserve the flagship for large, from-scratch generations where consistency matters most.
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https://aicalculatorpro.com/best-llm-for/bolt/<a href="https://aicalculatorpro.com/best-llm-for/bolt/">Best LLM for Bolt.new — AI Calculator Pro</a>