The document states that the least costly of the three jets being tendered are the Gripen of the Swedish firm Saab, the entire fleet being offered for $4.3 billion.
The Boeing F-18 jets would cost Brazil about $5.4 billion for 36 aircraft whereas the French Rafale would cost a lot more at $8.2 billion.
According to the published document, Boeing has agreed to the technology transfer required by the Brazilian government to close the deal and has also offered to open a center for high technology in Brazil if it gets the contract.
Note: all the above aircraft have large amounts of known qualities.
Unlike the F-35.