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Update Stylus opcode/hostio pricing reference #3396

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Update Stylus opcode/hostio pricing reference #3396

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docs(stylus): update opcode-hostio-pricing
anegg0 Jun 24, 2026
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Merge branch 'master' into update-stylus-opcode-pricing
anegg0 Jun 24, 2026
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6 changes: 4 additions & 2 deletions docs/stylus/reference/opcode-hostio-pricing.mdx
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Expand Up @@ -9,6 +9,8 @@ sidebar_position: 3

This reference provides the latest gas and ink costs for specific WASM opcodes and host I/Os when using Stylus. For a conceptual introduction to Stylus gas and ink, see [Gas and ink (Stylus)](/stylus/concepts/gas-metering).

<VanillaAdmonition type="info">The per-opcode and per-host-I/O ink costs in the tables below are subject to change as Stylus matures. They are defined in the upstream Stylus/Arbitrator source rather than in the precompiles, so confirm the current values against that source before relying on exact figures. The ink-to-gas relationship is fixed: 10,000 ink = 1 gas.</VanillaAdmonition>

## Opcode costs

The Stylus VM charges for WASM opcodes according to the following table, which was determined via a conservative statistical analysis and is expected to change as Stylus matures. Prices may fluctuate across upgrades as our analysis evolves and optimizations are made.
Expand Down Expand Up @@ -99,7 +101,7 @@ The Stylus VM charges for WASM opcodes according to the following table, which w
| 0x77 | I32Rotl | 70 | 0.007 | |
| 0x78 | I32Rotr | 70 | 0.007 | |
| 0x79 | I64Clz | 210 | 0.021 | |
| 0x7a | I64Ctz | 210 | 0.012 | |
| 0x7a | I64Ctz | 210 | 0.021 | |
| 0x7b | I64Popcnt | 6000 | 0.6 | |
| 0x7c | I64Add | 100 | 0.01 | |
| 0x7d | I64Sub | 100 | 0.01 | |
Expand Down Expand Up @@ -142,7 +144,7 @@ Note that the values in this table were determined via a conservative statistica
| block_coinbase | 13440 | 1.344 | |
| block_gas_limit | 8400 | 0.84 | |
| block_number | 8400 | 0.84 | |
| block_timestmap | 8400 | 0.84 | |
| block_timestamp | 8400 | 0.84 | |
| chain_id | 8400 | 0.84 | |
| contract_address | 13440 | 1.344 | |
| evm_gas_left | 8400 | 0.84 | |
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