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The dataset viewer is not available for this split.
Cannot load the dataset split (in streaming mode) to extract the first rows.
Error code: StreamingRowsError
Exception: CastError
Message: Couldn't cast
start: double
end: double
cycle: int64
history: list<item: list<item: double>>
child 0, item: list<item: double>
child 0, item: double
feed: list<item: struct<t: double, who: string, text: string>>
child 0, item: struct<t: double, who: string, text: string>
child 0, t: double
child 1, who: string
child 2, text: string
score: struct<eikos: struct<brier: double, n: int64, hits: int64, calls: int64, cal: list<item: list<item: (... 112 chars omitted)
child 0, eikos: struct<brier: double, n: int64, hits: int64, calls: int64, cal: list<item: list<item: double>>>
child 0, brier: double
child 1, n: int64
child 2, hits: int64
child 3, calls: int64
child 4, cal: list<item: list<item: double>>
child 0, item: list<item: double>
child 0, item: double
child 1, jev: struct<brier: double, n: int64, hits: int64, calls: int64, cal: list<item: list<item: double>>>
child 0, brier: double
child 1, n: int64
child 2, hits: int64
child 3, calls: int64
child 4, cal: list<item: list<item: double>>
child 0, item: list<item: double>
child 0, item: double
pending: struct<p_up: struct<eikos: struct<BTC: list<item: double>, ETH: list<item: double>, SOL: list<item: (... 746 chars omitted)
child 0, p_up: struct<eikos: struct<BTC: list<item: double>, ETH: list<item: double>, SOL: list<item: double>, HYPE (... 732 chars omitted)
child 0, eikos: struct<BTC: list<i
...
: double
child 7, start_equity: double
child 8, notional: double
child 9, us_open: bool
child 10, rules_sha256: string
schema: int64
markets: list<item: struct<coin: string, label: string, cat: string, desc: string, mid: double, chg24: double (... 258 chars omitted)
child 0, item: struct<coin: string, label: string, cat: string, desc: string, mid: double, chg24: double, eikos: st (... 246 chars omitted)
child 0, coin: string
child 1, label: string
child 2, cat: string
child 3, desc: string
child 4, mid: double
child 5, chg24: double
child 6, eikos: struct<side: int64, entry: double, upnl: double, p_pos: struct<long: double, flat: double, short: do (... 20 chars omitted)
child 0, side: int64
child 1, entry: double
child 2, upnl: double
child 3, p_pos: struct<long: double, flat: double, short: double>
child 0, long: double
child 1, flat: double
child 2, short: double
child 4, p_up: double
child 7, jev: struct<side: int64, entry: double, upnl: double, p_pos: struct<flat: double, short: double, long: do (... 20 chars omitted)
child 0, side: int64
child 1, entry: double
child 2, upnl: double
child 3, p_pos: struct<flat: double, short: double, long: double>
child 0, flat: double
child 1, short: double
child 2, long: double
child 4, p_up: double
to
{'schema': Value('int64'), 'published': Value('float64'), 'arena': {'start': Value('float64'), 'end': Value('float64'), 'cycle': Value('int64'), 'cycles_total': Value('int64'), 'cycle_min': Value('int64'), 'next': Value('int64'), 'finished': Value('float64'), 'start_equity': Value('float64'), 'notional': Value('float64'), 'us_open': Value('bool'), 'rules_sha256': Value('string')}, 'players': {'eikos': {'equity': Value('float64'), 'balance': Value('float64'), 'fees': Value('float64'), 'funding': Value('float64'), 'realized': Value('float64'), 'trades': Value('int64'), 'open': Value('int64'), 'brier': Value('float64'), 'n_fc': Value('int64'), 'hit': Value('float64'), 'lat_last': Value('int64'), 'lat_med': Value('int64'), 'missed': Value('int64'), 'last_changes': List(Value('null')), 'last_missed': Value('bool')}, 'jev': {'equity': Value('float64'), 'balance': Value('float64'), 'fees': Value('float64'), 'funding': Value('float64'), 'realized': Value('float64'), 'trades': Value('int64'), 'open': Value('int64'), 'brier': Value('float64'), 'n_fc': Value('int64'), 'hit': Value('float64'), 'lat_last': Value('int64'), 'lat_med': Value('int64'), 'missed': Value('int64'), 'last_changes': List(Value('null')), 'last_missed': Value('bool')}}, 'markets': List({'coin': Value('string'), 'label': Value('string'), 'cat': Value('string'), 'desc': Value('string'), 'mid': Value('float64'), 'chg24': Value('float64'), 'eikos': {'side': Value('int64'), 'entry': Value('float64'), 'upnl': Value('float64'), 'p_pos': {'long': Value('float64'), 'flat': Value('float64'), 'short': Value('float64')}, 'p_up': Value('float64')}, 'jev': {'side': Value('int64'), 'entry': Value('float64'), 'upnl': Value('float64'), 'p_pos': {'flat': Value('float64'), 'short': Value('float64'), 'long': Value('float64')}, 'p_up': Value('float64')}}), 'feed': List({'t': Value('float64'), 'who': Value('string'), 'text': Value('string')}), 'fills': List({'t': Value('int64'), 'who': Value('string'), 'coin': Value('string'), 'label': Value('string'), 'action': Value('string'), 'side': Value('int64'), 'px': Value('float64'), 'size': Value('float64'), 'fee': Value('float64'), 'pnl': Value('float64')}), 'history': List(List(Value('float64')))}
because column names don't match
Traceback: Traceback (most recent call last):
File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
return get_rows(
dataset=dataset,
...<4 lines>...
column_names=column_names,
)
File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
return func(*args, **kwargs)
File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
File "/src/services/worker/src/worker/utils.py", line 483, in safe_iter
yield from ds.decode(False) if ds.features else ds
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2840, in __iter__
for key, example in ex_iterable:
^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2373, in __iter__
for key, pa_table in self._iter_arrow():
~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2398, in _iter_arrow
for key, pa_table in self.ex_iterable._iter_arrow():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 536, in _iter_arrow
for key, pa_table in iterator:
^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 419, in _iter_arrow
for key, pa_table in self.generate_tables_fn(**gen_kwags):
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
self._cast_table(pa_table, json_field_paths=json_field_paths),
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
pa_table = table_cast(pa_table, self.info.features.arrow_schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
return cast_table_to_schema(table, schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2306, in cast_table_to_schema
raise CastError(
...<3 lines>...
)
datasets.table.CastError: Couldn't cast
start: double
end: double
cycle: int64
history: list<item: list<item: double>>
child 0, item: list<item: double>
child 0, item: double
feed: list<item: struct<t: double, who: string, text: string>>
child 0, item: struct<t: double, who: string, text: string>
child 0, t: double
child 1, who: string
child 2, text: string
score: struct<eikos: struct<brier: double, n: int64, hits: int64, calls: int64, cal: list<item: list<item: (... 112 chars omitted)
child 0, eikos: struct<brier: double, n: int64, hits: int64, calls: int64, cal: list<item: list<item: double>>>
child 0, brier: double
child 1, n: int64
child 2, hits: int64
child 3, calls: int64
child 4, cal: list<item: list<item: double>>
child 0, item: list<item: double>
child 0, item: double
child 1, jev: struct<brier: double, n: int64, hits: int64, calls: int64, cal: list<item: list<item: double>>>
child 0, brier: double
child 1, n: int64
child 2, hits: int64
child 3, calls: int64
child 4, cal: list<item: list<item: double>>
child 0, item: list<item: double>
child 0, item: double
pending: struct<p_up: struct<eikos: struct<BTC: list<item: double>, ETH: list<item: double>, SOL: list<item: (... 746 chars omitted)
child 0, p_up: struct<eikos: struct<BTC: list<item: double>, ETH: list<item: double>, SOL: list<item: double>, HYPE (... 732 chars omitted)
child 0, eikos: struct<BTC: list<i
...
: double
child 7, start_equity: double
child 8, notional: double
child 9, us_open: bool
child 10, rules_sha256: string
schema: int64
markets: list<item: struct<coin: string, label: string, cat: string, desc: string, mid: double, chg24: double (... 258 chars omitted)
child 0, item: struct<coin: string, label: string, cat: string, desc: string, mid: double, chg24: double, eikos: st (... 246 chars omitted)
child 0, coin: string
child 1, label: string
child 2, cat: string
child 3, desc: string
child 4, mid: double
child 5, chg24: double
child 6, eikos: struct<side: int64, entry: double, upnl: double, p_pos: struct<long: double, flat: double, short: do (... 20 chars omitted)
child 0, side: int64
child 1, entry: double
child 2, upnl: double
child 3, p_pos: struct<long: double, flat: double, short: double>
child 0, long: double
child 1, flat: double
child 2, short: double
child 4, p_up: double
child 7, jev: struct<side: int64, entry: double, upnl: double, p_pos: struct<flat: double, short: double, long: do (... 20 chars omitted)
child 0, side: int64
child 1, entry: double
child 2, upnl: double
child 3, p_pos: struct<flat: double, short: double, long: double>
child 0, flat: double
child 1, short: double
child 2, long: double
child 4, p_up: double
to
{'schema': Value('int64'), 'published': Value('float64'), 'arena': {'start': Value('float64'), 'end': Value('float64'), 'cycle': Value('int64'), 'cycles_total': Value('int64'), 'cycle_min': Value('int64'), 'next': Value('int64'), 'finished': Value('float64'), 'start_equity': Value('float64'), 'notional': Value('float64'), 'us_open': Value('bool'), 'rules_sha256': Value('string')}, 'players': {'eikos': {'equity': Value('float64'), 'balance': Value('float64'), 'fees': Value('float64'), 'funding': Value('float64'), 'realized': Value('float64'), 'trades': Value('int64'), 'open': Value('int64'), 'brier': Value('float64'), 'n_fc': Value('int64'), 'hit': Value('float64'), 'lat_last': Value('int64'), 'lat_med': Value('int64'), 'missed': Value('int64'), 'last_changes': List(Value('null')), 'last_missed': Value('bool')}, 'jev': {'equity': Value('float64'), 'balance': Value('float64'), 'fees': Value('float64'), 'funding': Value('float64'), 'realized': Value('float64'), 'trades': Value('int64'), 'open': Value('int64'), 'brier': Value('float64'), 'n_fc': Value('int64'), 'hit': Value('float64'), 'lat_last': Value('int64'), 'lat_med': Value('int64'), 'missed': Value('int64'), 'last_changes': List(Value('null')), 'last_missed': Value('bool')}}, 'markets': List({'coin': Value('string'), 'label': Value('string'), 'cat': Value('string'), 'desc': Value('string'), 'mid': Value('float64'), 'chg24': Value('float64'), 'eikos': {'side': Value('int64'), 'entry': Value('float64'), 'upnl': Value('float64'), 'p_pos': {'long': Value('float64'), 'flat': Value('float64'), 'short': Value('float64')}, 'p_up': Value('float64')}, 'jev': {'side': Value('int64'), 'entry': Value('float64'), 'upnl': Value('float64'), 'p_pos': {'flat': Value('float64'), 'short': Value('float64'), 'long': Value('float64')}, 'p_up': Value('float64')}}), 'feed': List({'t': Value('float64'), 'who': Value('string'), 'text': Value('string')}), 'fills': List({'t': Value('int64'), 'who': Value('string'), 'coin': Value('string'), 'label': Value('string'), 'action': Value('string'), 'side': Value('int64'), 'px': Value('float64'), 'size': Value('float64'), 'fee': Value('float64'), 'pnl': Value('float64')}), 'history': List(List(Value('float64')))}
because column names don't matchNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
Eikos vs Jev: live paper-trading arena on Hyperliquid
Results page: https://eikos-arena.vercel.app
A 72-hour experiment, run on 24–27 September 2026. Two decision models traded 14 Hyperliquid markets (crypto, tokenized stocks, indices and commodities) with $10,000 of simulated money each. Every 5 minutes both got the same market data and the same 28 questions: for each market, long, flat or short for the next 5 minutes, and "will the price be higher in 5 minutes?". Prices and fees were real (Hyperliquid's public API); no orders were placed.
Final result
The run ended on 27 September 2026 at 05:15 UTC, after 864 rounds.
| Account value | Return | Forecast error (Brier) | Hit rate | Trades | Missed rounds | |
|---|---|---|---|---|---|---|
| Jev | $10,086.55 | +0.87% | 0.249 | 47.4% | 31 | 20 |
| Eikos-27B | $9,659.56 | −3.40% | 0.266 | 51.6% | 141 | 0 |
- Jev finished ahead on both account value and forecast error.
- Eikos called the direction more often. But its probabilities were too confident for a 5-minute target that is close to random, and it traded 4.5 times as often.
- As the rules say, 72 hours of P&L is mostly noise. The ~12,000 scored forecasts per model are the more informative number.
- Positions still open at the end are valued at the mid of the last round, as the rules state.
Files
RULES.mdandPREREG.sha256: the rules, and the hashes of the rules and code taken at the start.run/official_20260924_0512/: the full logs and the frozen code of the run.cycles.jsonl: every round's snapshot, answers (all probabilities), fills, funding payments and equity.requests.jsonl.gz: every request sent to either model.arena_state.json: portfolios, scores and equity history, as the engine saved them at the finish.LOGS.sha256: hashes of these three files.RULES.md,arena.py,arena_core.py,hl.py,serve_used.pyandPREREG.sha256: the frozen copies that the start-time hashes were taken from.
live/state.json: the results page's snapshot, at the finish.
Notes
- Marking after the end: the engine kept marking the open positions to live prices after the end, and the results
page followed them for a few hours. The page now shows the result at the end, from the engine's own finish record.
cycles.jsonlandarena_state.jsonare the engine's records, unchanged. - Extra round: the engine ran one more round (the 865th) three minutes after the 72 hours. Neither model changed a position in it, and its own forecasts were never scored: 864 rounds × 14 markets = 12,096 forecasts for Eikos, and 11,816 for Jev, which missed 20 rounds.
- Jev's outputs were used for this evaluation only, never for training.
Code: https://github.com/caiovicentino/eikos-arena. Eikos-27B: https://huggingface.co/caiovicentino1/Eikos-27B. Not financial advice.
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