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Docs vs practice, reconciled
Best GMGN Settings: The Numbers That Don't Burn Money
Docs say one thing, practice says another. Here's both, reconciled. Tune per trade — and keep 80% of the fees.
Settings control execution. This link controls what GMGN fees return.
Best GMGN Settings, Fast
Community consensus for 2026: 10–15% slippage on new launches, 5–8% on established tokens, 0.002–0.006 SOL priority for normal trades (0.01–0.03+ only for contested snipes), anti-MEV on for volatile pairs, TP/SL set at entry. GMGN's own docs suggest 30–50% slippage — fewer failed buys, more sandwich exposure. Start tight; loosen only on failures.
Docs vs Practice — Reconciled
Both sources are right for different goals. Pick by what you're optimizing.
| Setting | Official docs say | Community practice | Our read |
|---|---|---|---|
| Slippage (new launch) | 30–50%+ | 10–15% | Docs optimize fill rate; practice optimizes price. Start 15%, raise on failures. |
| Slippage (established) | 30–35% | 5–8% | 5–8% is plenty on liquid pairs. High slippage there is sandwich bait. |
| Priority fee (normal) | 0.002–0.005 SOL | ~0.006 SOL default | Defaults fine. It's validator tip, not GMGN fee — don't overpay quiet markets. |
| Priority fee (snipe) | 0.006+ SOL (auto orders) | 0.01–0.05 SOL | Scale to competition. Hot launch = pay up or miss. |
| Anti-MEV | Optional | On for volatile pairs | On. GMGN users were the most-hit app in the 2025 sandwich wave. |
Sources: docs.gmgn.ai fees & settings; CoinCodeCap settings guide; incident coverage 2025.
The Logic, Trade by Trade
Slippage sets your worst accepted price
Slippage tolerance is the worst price you accept. Set 50% and a sandwich bot can legally take most of it. Set 5% on a fresh launch and nothing fills. The skill: match slippage to volatility, not to fear of missing out.
Priority fees buy queue position, nothing else
On Solana, the tip decides who gets in the block first. A quiet Tuesday afternoon entry needs almost none. A hyped migration snipe is an auction — budget the tip like part of your position size.
Anti-MEV is insurance with a tiny premium
Routing through protected lanes costs a touch of speed. Being sandwiched costs percent. On anything volatile, the math says on. GMGN shipped protection plus compensation after the 2025 wave — history here.
TP/SL at entry, or your amygdala trades for you
Set take-profit steps and a stop the moment you're filled. The traders who last automate exits — copy trading does this for you if you'd rather follow proven wallets.
Settings Questions
What are the best GMGN slippage settings?
Community practice: 10–15% slippage for new launches, 5–8% for established tokens. GMGN's own docs suggest 30–35% (50%+ on fresh launches) — that fills more buys but exposes you to sandwich attacks. Start tight, raise only when transactions fail.
What priority fee should I use on GMGN?
For normal trades, defaults around 0.002–0.006 SOL are plenty. For contested snipes, 0.01–0.03 SOL, up to 0.05+ when a launch is hot. Priority fees go to validators, not GMGN — every extra lamport is pure cost, so scale them to the competition.
Should I turn on anti-MEV on GMGN?
Yes for volatile pairs and any trade with double-digit slippage — GMGN users were the most-hit app in the 2025 Solana sandwich wave before protection shipped. The slight speed cost beats getting sandwiched.
What TP/SL should I set on GMGN?
Set them at entry, always. A common degen baseline: take profit in steps (e.g. 50% out at 2x) and a stop-loss around −30 to −50% depending on conviction. The exact numbers matter less than automating the exit before emotions vote.
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