Backyard AI vs Character.AI

Backyard AI offers AI-powered characters for fictional text and voice chats, including text adventures, interactive stories, and roleplaying. Its Community Hub lets users explore thousands of characters, which can be customized with lorebooks, an author's note, grammars, and model parameters. Group chats can include up to four characters, and voice calls are listed as a feature. The Free plan costs nothing and includes 300 messages per week, one model, and 16k maximum memory. The free desktop app runs local models offline; the listed download is for macOS Intel. Local models can also be accessed from a mobile browser or iOS app through opt-in tethering. Cloud subscriptions provide hosted models, with choices and limits varying by tier. Standard costs $12 a month and includes unlimited messages with Standard models; Pro costs $35 a month and includes Standard and Pro models with a 100,000-token maximum context. Backyard AI supports GGUF models, but not FP16, GPTQ, or AWQ files. Its listed platforms are Android, iOS, macOS, and web.

Character.AI is an interactive entertainment service for connecting, learning, and telling stories through conversations with Characters. Users can discover millions of Characters and have unlimited conversations, or create heroes, settings, stories, and challenges to share with the community. The company says everyone can send unlimited messages for free. The Free plan includes unlimited messaging, basic memory, and access to Character Voice. Character Calls supports two-way voice conversations, and users can switch between talking and texting. The c.ai+ plan costs $94.99 a year and renews yearly; its listed benefits include waiting-room access, faster message generation, a members-only community channel with faster feedback and support, a membership badge, and early access to features. The company says c.ai+ messages are generated approximately 2–3 times faster. Character.AI is available on Android, iOS, and web. Its Safety Center describes additional content safeguards for users under 18 and says an account requires users to be at least 13, or 16 in Europe.