Key takeaways
- Bonk.fun (letsbonk.fun) is a Solana launchpad that runs on Raydium LaunchLab, Raydium's bonding-curve program, using its own platform configuration.
- A standard Bonk.fun SOL curve sells 793.1 million of a coin's 1 billion tokens and graduates once 85 SOL has been raised, then migrates to a Raydium CPMM pool.
- As read on chain in November 2026, a Bonk.fun curve trade pays 1.5%: Raydium's 0.25% protocol fee plus Bonk.fun's 1.25% platform fee.
- A 1 SOL dev buy on a fresh Bonk.fun curve gets about 34.1 million tokens, or 3.41% of the supply.
- In the 30 days to November 5, 2026, Jupiter's launchpad index counted 1,416 letsbonk.fun launches and 42 graduations, against more than 1.1 million launches on pump.fun.
The short answer
To launch on Bonk.fun you create a coin on Bonk.fun's Raydium LaunchLab bonding curve, either on letsbonk.fun or with a tool that uses Bonk.fun's platform account, and optionally make a dev buy in the same transaction. The coin gets a fixed 1 billion supply, 793.1 million of it sold on the curve. Each trade pays 1.5% as of November 2026, and once 85 SOL has been raised the coin migrates to a Raydium CPMM pool.
What is Bonk.fun?
Bonk.fun, also known by its domain letsbonk.fun, is a memecoin launchpad built on Raydium LaunchLab, Raydium's bonding-curve program. LaunchLab lets any site run a launchpad by creating a platform account with its own fees; Bonk.fun's is the one named letsbonk.fun. A coin created with that platform account belongs to Bonk.fun on chain, whichever site sent the transaction.
Raydium's LaunchLab overview describes the life of a coin: it trades on a bonding curve until it reaches its target, then migrates to a Raydium pool. Raydium's docs say all new launches migrate to CPMM pools since its September 2026 upgrade.
Bonk.fun is much smaller than pump.fun by launch count. In the 30 days to November 5, 2026, Jupiter's launchpad index counted 1,416 letsbonk.fun launches and 42 graduations, a rate of about 3%, while pump.fun had 1,132,904 launches. The free Solana Launchpad Stats page tracks those figures daily.
How does the Bonk.fun bonding curve work?
The standard Bonk.fun SOL curve is a constant-product curve that sells 793.1 million of 1 billion tokens and graduates at 85 SOL. Raydium's LaunchLab creation guide lists the JustSendit mode target as "85 SOL (fixed)".
| Parameter | Standard Bonk.fun SOL curve |
|---|---|
| Program | Raydium LaunchLab |
| Supply and decimals | 1,000,000,000 tokens, 6 decimals |
| Sold on the curve | 793.1 million |
| Graduation target | 85 SOL raised |
| Migrates to | Raydium CPMM pool with the raised SOL and the remaining 206.9 million tokens |
| Mint and freeze authority | None kept |
| Trading fee on the curve | 1.5% (Raydium 0.25% + Bonk.fun 1.25%), read on chain November 2026 |
| Trading fee after migration | The CPMM pool's fee tier, typically 0.25% per Raydium's docs |
The fee figures come from LaunchLab's live configs as read on chain in November 2026: the protocol tradeFeeRate is 0.25%, and Bonk.fun's main platform config charges 1.25% with a creator fee rate of 0. Raydium's general fee comparison page gives a different figure for curve trades, so trust the on-chain config, which is what the program actually charges. SOLTidy's tools read it before you sign. Bonk.fun also runs curves priced in USD1; this guide covers the SOL curve.
What does a Bonk.fun launch cost?
A Bonk.fun launch costs account rent, your dev buy and any tool fee; LaunchLab charges nothing to create a coin. The creator pays about 0.0106 SOL of rent for the mint, metadata, pool and vault accounts plus Metaplex's 0.01 SOL metadata fee, about 0.021 SOL in total.
The dev buy pays the 1.5% trading fee out of the SOL you spend. On a fresh curve:
| Dev buy | Tokens | Share of supply |
|---|---|---|
| 0.5 SOL | ≈ 17.3 million | ≈ 1.73% |
| 1 SOL | ≈ 34.1 million | ≈ 3.41% |
| 5 SOL | ≈ 151 million | ≈ 15.1% |
| ≈ 86.3 SOL | All 793.1 million | Graduates immediately |
Launching through SOLTidy's Bonk.fun Launcher adds a flat 0.1 SOL as of November 2026. A launch with a 1 SOL dev buy then costs 1 SOL for the buy, 0.1 SOL to SOLTidy and about 0.021 SOL of rent and fees: about 1.12 SOL.
How do you launch a coin on Bonk.fun?
You launch by filling in the coin's details, choosing a dev buy and signing one transaction. Here is the flow with SOLTidy's Bonk.fun Launcher, which calls LaunchLab's initialize_v2 instruction with Bonk.fun's platform account, the same way letsbonk.fun does:
- Describe the coin. Name, symbol, logo, description and links. The logo and metadata are uploaded to a permanent link, or you can paste your own metadata link.
- Pick the address. Use a random mint address or search for one ending in
bonk, like the coins made on letsbonk.fun. The search runs in your browser. - Set the dev buy. Choose how much SOL to spend and your max slippage. Tokens are quoted from Bonk.fun's live fee settings. Set it to 0 to launch without buying.
- Sign once. One transaction creates the coin, opens its curve, makes your buy and pays the fee. Then open the coin on letsbonk.fun.
Because the curve is created in the same transaction as your buy, nobody can buy in between: you get the first, cheapest tokens. On letsbonk.fun itself the flow is similar, without the tool fee; menu names on launchpad sites change often, so follow the site's current create form.
Launching with several wallets
If you want team or treasury wallets to buy in the launch block, the Bonk.fun Bundle Launcher creates the coin and buys from your wallet and up to 8 more in one Jito bundle, for 0.3 SOL per bundle plus the tip. Only two buys fit per transaction because each LaunchLab buy wraps SOL into a temporary account. Example: a 1 SOL dev buy plus 8 wallets buying 0.5 SOL each take about 15.1% of the supply. How a pump.fun bundler works explains bundle layout, and the same rule applies here: bundled wallets buy in the first block and screeners show it, so disclose them and never use them to fake demand.
To buy an existing Bonk.fun coin from many wallets, Bonk.fun Mass Buy works on the curve or on the Raydium pool after migration, for 0.5% of the SOL traded, capped at 0.1 SOL per run.
Does Bonk.fun pay creator fees?
Bonk.fun promotes creator rewards, but they are not paid from an on-chain vault your wallet can claim. As read on chain in November 2026, letsbonk.fun's LaunchLab config sets no creator fee on the bonding curve and names a Bonk.fun wallet as creator of the CPMM pools its coins migrate to. Raydium's creator fee documentation explains how LaunchLab assigns fee rights at migration. So Bonk.fun receives those fees and pays creator rewards on its own terms; check letsbonk.fun for the current program.
Other LaunchLab platforms do set a creator fee that the creator claims directly. SOLTidy's Claim Creator Fees scans LaunchLab creator vaults, Raydium CPMM creator fees, pump.fun, Meteora and Bags for your wallet and claims them for 5% of the SOL claimed. If it finds nothing from a Bonk.fun coin, that is why.
Bonk.fun or pump.fun?
Both sell 793.1 million of 1 billion tokens and graduate at about 85 SOL, so the curves feel similar. The differences:
| Bonk.fun | pump.fun | |
|---|---|---|
| Program | Raydium LaunchLab | pump.fun's own program |
| Curve trading fee | 1.5% | 1.25% |
| Creator fee on the curve | None on chain (rewards paid by Bonk.fun) | 0.30%, claimable from your vault |
| Graduates to | Raydium CPMM pool | PumpSwap pool |
| Launches, 30 days to Nov 5, 2026 | 1,416 | 1,132,904 |
| Buyers per bundle on SOLTidy | 9 including you | 16 including you |
Pump.fun has far more traders watching new launches; Bonk.fun's smaller feed means less noise and fewer buyers. Solana launchpads compared adds Jupiter Studio, Bags and Moonit.
Bottom line
Bonk.fun is Raydium LaunchLab with its own platform fees: a 793.1 million-token curve, graduation at 85 SOL into a Raydium CPMM pool, and a 1.5% curve fee as of November 2026. Creating a coin costs about 0.021 SOL of rent and fees plus your dev buy, and 0.1 SOL more through the SOLTidy Bonk.fun Launcher. Creator rewards come from Bonk.fun, not from a vault you claim. Launch numbers are small next to pump.fun, so plan on finding your own buyers.
Questions & answers
How much does it cost to launch on Bonk.fun?
Raydium LaunchLab charges no create fee. The creator pays rent for the mint, metadata, pool and vault accounts plus Metaplex's 0.01 SOL metadata fee, about 0.021 SOL in total, and any dev buy pays the 1.5% trading fee inside it. Launching through SOLTidy's Bonk.fun Launcher adds a flat 0.1 SOL as of November 2026, so a launch with a 1 SOL dev buy costs about 1.12 SOL.
How much SOL does a Bonk.fun coin need to graduate?
85 SOL on the standard SOL curve. Raydium's LaunchLab documentation lists the JustSendit mode SOL target as 85 SOL, fixed. When buyers have put that much into the curve, its 793.1 million tokens are sold, the curve stops trading, and Raydium migrates the SOL and the remaining 206.9 million tokens into a CPMM pool.
What is the Bonk.fun trading fee?
1.5% of each curve trade as read on chain in November 2026: Raydium LaunchLab's 0.25% protocol fee plus Bonk.fun's 1.25% platform fee on its main configuration. Bonk.fun also has a configuration with a 1% platform fee. After migration, trades pay the Raydium CPMM pool's fee instead, typically the 0.25% tier.
Does Bonk.fun pay creator fees?
Bonk.fun advertises creator rewards, but on chain its LaunchLab configuration sets no creator fee on the bonding curve and makes a Bonk.fun wallet the creator of the CPMM pools its coins migrate to. That means rewards are paid by Bonk.fun on its own terms rather than from a vault your wallet can claim directly. Check letsbonk.fun for the current reward program.
Is Bonk.fun the same as Raydium LaunchLab?
Bonk.fun runs on the LaunchLab program, so the curve and graduation rules are the same, but it uses its own platform account with its own fees and lists coins on letsbonk.fun. Raydium's own LaunchLab platform charges 0.75% plus a 0.05% creator fee and lists coins on raydium.io.
Can I bundle a Bonk.fun launch?
Yes. SOLTidy's Bonk.fun Bundle Launcher creates the coin and buys from your wallet and up to 8 more in one Jito bundle, for 0.3 SOL per bundle plus the tip. Fewer wallets fit than on pump.fun because each LaunchLab buy wraps SOL, so only two buys fit in a transaction. Bundled buys are visible on chain and should be disclosed.
