Alternatives?
CheaperMiMo v2.6 ProthinkingOpen+26%-10%$0.13Pass back reasoning_content+3
BetterGPT-6 Lunamedium+6%-88%$0.017Function calling only with none · Chat Completions+3CheaperGPT-6.1 Sollow+11%-12%$0.13Remove unsupported parameters+5CheaperGPT-6.1 Terralow+9%-63%$0.055
CheaperClaude Haiku 5.5xhigh+7%-16%$0.12Remove sampling parameters+5MiMo v2.6 ProthinkingOpen+26%-10%$0.13Pass back reasoning_content+3GPT-6 Lunamax+13%-54%$0.068Function calling only with none · Chat Completions+3GPT-6.1 Sollow+11%-12%$0.13Remove unsupported parameters+5GPT-6.1 Terralow+9%-63%$0.055Claude Haiku 5.5xhigh+7%-16%$0.12Remove sampling parameters+5GPT-6 Lunamedium+6%-88%$0.017Function calling only with none · Chat Completions+3GPT-5.6 Lunahigh+7%-70%$0.044GPT-6.1 Terralow+9%-63%$0.055MiMo v2.6 FlashthinkingOpen+6%-58%$0.062Pass back reasoning_content+3Claude Haiku 5.5xhigh+7%-16%$0.12Remove sampling parameters+5MiMo v2.6 ProthinkingOpen+26%-10%$0.13Pass back reasoning_content+3
Kimi K3maxOpen+24%+1,251%$2.00Sampling parameters are fixed+3
GLM 5.3maxOpen+23%+1,254%$2.01Reasoning cannot be disabled+3
Step 5 PreviewthinkingOpen+22%+593%$1.03web_search not available · Chat Completions+2
Muse Spark OpenxhighOpen+21%+470%$0.84Reasoning off leaves output unchanged · Self-hosted / llama.cpp+1FAQ
How much does Quasar 438B cost?›
$0.60 per 1M input tokens and $1.80 per 1M output tokens. A typical benchmark task costs about $0.15 at max effort.
Is Quasar 438B free to use?›
There is no free API; the cheapest paid price is $0.60 per 1M input tokens.
How good is Quasar 438B, and what is it best at?›
#131 of 336 in Chat & Knowledge, #56 of 134 in Coding, #57 of 135 in Agents & Tool Use, #83 of 135 in Vision & Documents. Strongest at: Knowledge.
Is Quasar 438B better than Grok 4.3?›
On SciCode, Quasar 438B scores 48.1 vs 48.3 — about the same. It is 28% cheaper per task.
How can I use Quasar 438B?›
Through the API of Multiverse Computing.
What is the context window of Quasar 438B?›
1M tokens.
When was Quasar 438B released? Is there a newer version?›
Released 2026-08-10. It is the current version in its line.
Is Quasar 438B open source?›
No, Quasar 438B is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.
Can Quasar 438B read images?›
No, it accepts text only.
What is Quasar 438B?›
Quasar 438B is a closed language model from Multiverse Computing, released Aug 2026.
What are the best alternatives to Quasar 438B?›
MiMo v2.6 Pro (cheaper), GPT-6 Luna (better).