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Equity (Tables) | 3 Months Ended
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Apr. 30, 2023
Equity [Abstract] |
Schedule of Stock Reserved For Future Issuance | The Company had shares of common stock reserved for future issuance as follows (in thousands):
|  |  | April 30, 2023 |  | January 31, 2023
Class A and Class B common stock |  |  |  |  |
Options issued and outstanding |  |  | 11,149 |  |  | 12,686 |
Shares available for issuance under Equity Incentive Plans |  |  | 25,914 |  |  | 21,483 |
RSUs and PSUs issued and outstanding |  |  | 11,531 |  |  | 8,336 |
Shares reserved for issuance to charitable organizations |  |  | 1,555 |  |  | 1,636 |
ESPP |  |  | 5,814 |  |  | 4,303 |
Total |  |  | 55,963 |  |  | 48,444 |
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award | The awards available for grant under the above Plans for the pe riods presented were as follows (in thousands):
|  |  | April 30, 2023 |  | January 31, 2023
Available at beginning of period |  |  | 21,483 |  |  | 18,248 |
Awards authorized |  |  | 7,557 |  |  | 7,673 |
RSUs and PSUs granted |  |  | (3,944) |  |  | (6,651) |
RSUs and PSUs canceled and forfeited |  |  | 390 |  |  | 657 |
Options canceled and forfeited |  |  | 415 |  |  | 1,496 |
Options repurchased |  |  | 13 |  |  | 60 |
Available at end of period |  |  | 25,914 |  |  | 21,483 |
Share-based Payment Arrangement, Option, Activity | The following table summarizes options activity under the Plans, and related information:
| Number of Stock Options Outstanding (in thousands) |  | Weighted Average Exercise Price |  | Weighted Average Remaining Years |  | Aggregate Intrinsic value (in millions)
Balances at January 31, 2023 | 12,686 |  |  | $ | 12.30 |  |  | 7.00 |  | $ | 470.8 |
Options granted | — |  |  | — |  |  |  |  |
Options exercised | (1,122) |  |  | 6.87 |  |  |  |  |
Options canceled | — |  |  | — |  |  |  |  |
Options forfeited | (415) |  |  | 17.01 |  |  |  |  |
Balances at April 30, 2023 | 11,149 |  |  | $ | 12.67 |  |  | 7.02 |  | $ | 197.3 |
Options vested at April 30, 2023 | 6,808 |  |  | $ | 10.36 |  |  | 6.56 |  | $ | 136.1 |
Options vested and expected to vest at April 30, 2023 | 11,149 |  |  | $ | 12.67 |  |  | 7.02 |  | $ | 197.3 |
Schedule of Restricted Stock Units Activity | The following table summarizes the Company’s RSU activity (in thousands):
| Number of Shares (1) |  | Weighted- Average grant date fair value
Balances at January 31, 2023 | 5,018 |  |  | $ | 53.33 |
Granted | 3,944 |  |  | 37.44 |
Vested | (359) |  |  | 54.88 |
Canceled/forfeited | (390) |  |  | 53.62 |
Balances at April 30, 2023 | 8,213 |  |  | $ | 45.62 |
(1) The table above does not include 3 million RSUs issued to the Company’s founder and the Chief Executive Officer (“CEO”) described below.
Schedule of Estimating the Fair Value of the ESPP | The following table summarizes assumptions used in estimating the fair value of the ESPP for the offering period in effect using the Black-Scholes option-pricing model:
| Three Months Ended April 30,
| 2023 |  | 2022
Risk-free interest rate | 1.62% - 4.55% |  | 0.07% - 0.47%
Volatility | 44.95% - 55.19% |  | 38.47% -46.61%
Expected term (in years) | 0.50 - 2.00 |  | 0.57 -2.07
Dividend yield | —% |  | —%
Schedule of Share Based Compensation Expense | The Company recognized stock-based compensation expense as follows (in thousands):
| Three Months Ended April 30, |  |
| 2023 |  | 2022 |  |  |  |  |  |
Cost of revenue | $ | 1,414 |  |  | $ | 790 |  |  |  |  |  |  |
Research and development | 11,702 |  |  | 5,036 |  |  |  |  |  |  |
Sales and marketing | 13,764 |  |  | 7,051 |  |  |  |  |  |  |
General and administrative | 5,450 |  |  | 4,594 |  |  |  |  |  |  |
Total stock-based compensation expense (1) | $ | 32,330 |  |  | $ | 17,471 |  |  |  |  |  |  |
(1) The table above includes stock-based compensation of JiHu. Refer to “Note 12. Joint Venture and Equity Method Investment” for further discussion.

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