France international Giroud poked Milan level with 15 mins last of a exciting stumble upon after Ivan Perisic had given champions Inter a deserved first-half of lead with a superbly positioned volley from Hakan Calhanoglu's corner.
And 3 mins later the 35-12 months-vintage sent the Milan lovers on the San Siro wild with a neat flip and occasional finish after gathering Davide Calabria's pass.
"We had been in issue for the first 1/2. The second 45 mins we were given lower back in the sport, and I was hoping for one or chances in the location," Giroud said to DAZN.
"The first became a bit fortunate but the 2nd changed into an awesome ball from Cala (Davide Calabria) and terrific for our fanatics... I don't know what to mention. I'm very satisfied and proud of this crew which in no way gave up."
Giroud became most effective gambling because Zlatan Ibrahimovic became out with an Achilles tendon harm however pounced simply as Inter gave the impression to be headed for what up to that point might were a deserved win.
Milan had hardly ever created something until Giroud pushed Brahim Diaz's mishit and deflected shot past Samir Handanovic however are now proper returned in a title race which regarded to be heading in Inter's favour.
Napoli can pile even extra strain on Simone Inzaghi's Inter, who have a game in hand, after they face Venezia on Sunday with the threat to tug degree on 52 points with Milan.
Inter journey to Napoli next weekend in a big fortnight for them which also includes the go to of Liverpool for the primary leg of their Champions League last sixteen tie.
The defeat might be deeply disappointing for Inter, who had been by some distance the higher team for much of the fit, and if it hadn't been for Mike Maignan should without difficulty had been a couple of desires ahead by the time Giroud struck.
France stopper Maignan averted Denzel Dumfries from setting away a simple one-on-one chance in the first half of and saved Milan in the game lengthy enough for them to inflict on Inter a first league home defeat due to the fact that October 2020.
