When comparing GohuFont vs Input, the Slant community recommends Input for most people. In the question“What are the best programming fonts?” Input is ranked 5th while GohuFont is ranked 30th. The most important reason people chose Input is:
Input can be configured online with preview: width, weight, line height, and alternate letterforms.
Specs
Question Ranking
Pros
Pro Unique glyphs
This makes it easy to distinguish characters at small sizes.
Pro It has bold font even for the small 11px size
Pro Very good unicode support
It covers most common unicode characters so it's suitable for everyday terminal applications, not only coding.
Pro Raster font
Always crisp and sharp, highly legible at even 8 pt. Excellent for low to normal dpi screens.
Pro Highly configurable
Input can be configured online with preview: width, weight, line height, and alternate letterforms.
Pro Available in Mono, Sans, and Serif
There are a couple advantages to using a proportionally spaced font in code: comfort of reading, ease of spotting typos, and better differentiation between different kinds of code with font styles. Fontbureau dedicated an entire page to this topic. Unfortunately, a lot of text editors only support monospaced fonts.
Pro Clear distinctions between similar characters
In some fonts, it's difficult to distinguish between similar characters such as i/L/1, or o/zero, or m/rn. This font does an incredible job at making all of these examples clearly identifiable.
Pro Clear on low resolution and retina display
The code stays clear on low resolution and retina display with the same font option.
Pro Serif font is remarkably readable
Pro Clear distinction between similar characters
The font is easy to read, has a clear distinction between similar character types, is very customizable with weight and line height. Free for personal/unpublished usage. You can customize the font how you like it on their site before downloading it to use.
Pro Condensed and Compressed Thin saves a lot of space
When using the condensed or compressed version with the thin typeface, you gain a lot of screen space and it's still extremely readable for all day coding.
Cons
Con Ships in only two sizes
It only ships in 11px and 14px formats, which might not feel as comfortable to people used to other font sizes.
Con Bitmap only
Certain Cairo-powered apps fail to render them (e.g. sublime text is only available on a few Linux distros).
Con Hard to distinguish "8" from "B" at low sizes
This often impacts upon designers working with hexadecimal numbers. Many fonts address this by either changing the x-height for numerals, making "8" more of an hourglass shape, or making the "B" cap smaller. At 10 pt, there's less than three pixels of a difference (anti-aliased).
Con Closed source
Although font designers need to make money too, open source model is preferred.
Con Easy to confuse lowercase "i" with "1" if you're not used to it
The dot is so close to the body that they fuse, and with the serif on top it looks like the cap of the letter "1". When you put them side by side it's easy to see which one is which, but if you see a code that reads "a+=i" you're going to read that it increments a by 1.
Con The tilde is indistinguishable from a dash
Tilde is basically indistinguishable from a dash, unless you blow the size up huge. The curves in the tilde are too shallow.
Con Decimal digits can blend together
A lot of decimal digits have a similar form, 2's can sometimes look like 8's and so forth, which makes long strings of digits hard to read. I find other fonts like Consolas's digits more legible even at smaller sizes.