WASHINGTON – Health-care overhaul legislation being rolled out in the House of Representatives Thursday includes a compromise version of a public insurance option and carries and overall cost of $894 billion over 10 years, House aides said.

The cost figure is just under the $900 billion upper limit set by President Barack Obama for a health-care bill he will sign.

The bill includes a mix of cuts to existing programs and new taxes, including a surtax on high earners, to fully offset its impact on the federal budget. The bill will actually produce a net savings of $30 billion over the first 10 years, according to a news release from Speaker Nancy Pelosi.

The bill would require individuals to purchase health insurance, would set up insurance exchanges and would provide tax credits to low- and middle-income families to purchase coverage. The public insurance option would use rates negotiated with doctors and hospitals.

Democrats say that government-run plan, together with new regulations on the insurance industry like limits on out-of-pocket costs, will help lighten the burden of health-care costs on family pocketbooks.

"The drive for affordable health care is moving forward," Ms. Pelosi said at a Capitol news conference to announce the bill.

House leaders hope to hold a vote on the legislation by the end of next week.

One addition to the bill from previous versions is a repeal of the exemption health insurers now enjoy from federal antitrust laws.

In a letter this month to House Judiciary Chairman John Conyers, the trade association America's Health Insurance Plans said the provision "attempts to remedy a problem that does not exist." Insurers contend that despite the exemption, state laws and other federal laws already include adequate safeguards against anticompetitive practices.

Nevertheless, the group said repealing the federal antitrust exemption could chill the creation of some practices beneficial to consumers and spur lawsuits against the industry.

The bill also would allow more small businesses to immediately have access to the health insurance exchanges. Workers at firms with 25 or fewer employees would be eligible to purchase coverage through the exchange in 2013, the first year the exchange is up and running, up from 10 or fewer employees in an earlier version.

The House bill also includes a provision approved by the House Energy and Commerce Committee creating a federal long-term-care benefit financed by payroll deductions from those who voluntarily sign up.