# Blob scaling in 2026
# Max blobs flag tracker
Nethermind: `--Blocks.BlockProductionBlobLimit=1` - latest [master](https://github.com/NethermindEth/nethermind/pull/9686) :heavy_check_mark:
Reth: `--builder.max-blobs` - latest [main](https://github.com/paradigmxyz/reth/pull/19614) :heavy_check_mark:
Geth: `--miner.maxblobs` - latest [master](https://github.com/ethereum/go-ethereum/pull/33129) :heavy_check_mark:
Erigon: `--builder.maxblobs` - latest [main](https://github.com/erigontech/erigon/pull/18477) :heavy_check_mark:
Besu: [WIP](https://github.com/hyperledger/besu/pull/9531)
NimbusEL: N/A
Ethrex: N/A
# Engine API Optimization
sszing the engine api -- based on some initial numbers this doesn't seem to be a big deal
# Cell level optimization tracker
### CL:
Prysm: PR pending - branch MarcoPolo:partial-columns
Lighthouse: PR pending - branch dknopik:partial-columns
Teku: WIP starting first week jan
Grandine: N/A
Nimbus: WIP starting first week jan
Lodestar: WIP starting first week jan
### EL:
Geth: [master](https://github.com/ethereum/go-ethereum/pull/33404) :heavy_check_mark:
Nethermind: [master](https://github.com/NethermindEth/nethermind/pull/9942) :heavy_check_mark:
Erigon: [main](https://github.com/erigontech/erigon/pull/18512) :heavy_check_mark:
Besu: [main](https://github.com/hyperledger/besu/pull/9582) :heavy_check_mark:
Reth: [main](https://github.com/paradigmxyz/reth/pull/20451) :heavy_check_mark:
NimbusEl: [master](https://github.com/status-im/nimbus-eth1/pull/3893) :heavy_check_mark:
Ethrex: [main](https://github.com/lambdaclass/ethrex/pull/5648) :heavy_check_mark:
kurtosis config:
```yaml=
participants_matrix:
el:
- el_type: geth
el_image: ethpandaops/geth:master
- el_type: nethermind
el_image: ethpandaops/nethermind:master
- el_type: reth
el_image: ethpandaops/reth:main
- el_type: erigon
el_image: ethpandaops/erigon:main
cl:
- cl_type: lighthouse
cl_image: ethpandaops/lighthouse:dknopik-partial-columns
validator_count: 16
- cl_type: prysm
cl_image: ethpandaops/prysm-beacon-chain:marcopolo-partial-columns
validator_count: 16
cl_extra_params:
- "--partial-data-columns"
- cl_type: teku
cl_image: ethpandaops/teku:master
network_params:
prefunded_accounts: '{"0xb9e79d19f651a941757b35830232e7efc77e1c79": {"balance": "100000ETH"}}'
snooper_enabled: false
additional_services:
- dora
- spamoor
global_log_level: debug
spamoor_params:
spammers:
- scenario: blob-combined
name: blob spammer for mev builder
config:
throughput: 6
sidecars: 1
client_group: "mevbuilder"
- scenario: blob-combined
name: blob spammer
config:
throughput: 6
sidecars: 1
mev_type: flashbots
mev_params:
mev_builder_subsidy: 1
```