SillyTavern (a role-playing frontend) users' consensus thread on GLM 5.3: Compared with 5.2, 5.3 shows clear improvements in character consistency, instruction following, and the echoing issue, but the experience varies by preset.
OP's initial test: "It feels about the same as 5.2, but maybe that's just my system bias; also, it's a 'code model,' and I don't think it will be a huge improvement over 5.2."
Highly upvoted reply (+38, @RIPT1D3_Z): "For me, the difference is significant; it sticks to the character much better. But it depends on the preset."
(+25, @dptgreg): "Agreed. It is significantly better for me (or perhaps just slightly better—each iteration brings both new strengths and new weaknesses)."
Echoing (one of 5.2's most annoying problems): @dptgreg reported, "Better. I haven't encountered it in my testing yet. It usually kicks in when the context gets longer... The FF5+ presets contain targeted prompts, and after its improvements in instruction following, 5.3 may have adapted to those prompts better."
Counterpoint (+2, @LeSScro): "5.2 would leave some tasks unfinished, requiring extra effort to reach the result Claude delivers in one pass. It feels like a regression."
Mixed-language comments: @Alice__T_T "El FF5.2 esta funcionando de maravilla con GLM 5.3" (the FF5.2 preset + GLM 5.3 works exceptionally well); @dptgreg "GLM 5.3 makes Internal States (the preset mechanism) work extremely, extremely well with the output."
For non-programming scenarios (role-playing/everyday conversation): 5.3 has better character consistency, instruction following, and echo control than 5.2; however, individual experiences vary widely and depend heavily on preset configuration—prompt/preset engineering has a significant impact on the real-world GLM 5.3 experience.
Complementary to coding evaluations: this community focuses on the "conversation quality" dimension, supporting the view that 5.3's post-training has improved general conversation/role-playing, while also suggesting that 5.3's "code model" positioning has not sacrificed conversational ability.
"For me it's significantly different and sticks to the character better. Depends on preset, I guess." (+38)
"I think it's better. I haven't came across it [echoing] yet in my testing." (@dptgreg)
GLM-5.3