Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Opus 4.8
92
Ornith-1.0-397B
96
Verified leaderboard positions: Claude Opus 4.8 #5 · Ornith-1.0-397B unranked
Pick Ornith-1.0-397B if you want the stronger benchmark profile. Claude Opus 4.8 only becomes the better choice if agentic is the priority or you need the larger 1M context window.
Agentic
+2.6 difference
Coding
+6.0 difference
Claude Opus 4.8
Ornith-1.0-397B
$5 / $25
$0 / $0
N/A
N/A
N/A
N/A
1M
262K
Pick Ornith-1.0-397B if you want the stronger benchmark profile. Claude Opus 4.8 only becomes the better choice if agentic is the priority or you need the larger 1M context window.
Ornith-1.0-397B is clearly ahead on the provisional aggregate, 96 to 92. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Ornith-1.0-397B's sharpest advantage is in coding, where it averages 82.4 against 76.4. The single biggest benchmark swing on the page is SWE-bench Verified, 88.6% to 82.4%. Claude Opus 4.8 does hit back in agentic, so the answer changes if that is the part of the workload you care about most.
Claude Opus 4.8 is also the more expensive model on tokens at $5.00 input / $25.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Ornith-1.0-397B. That is roughly Infinityx on output cost alone. Claude Opus 4.8 gives you the larger context window at 1M, compared with 262K for Ornith-1.0-397B.
Ornith-1.0-397B is ahead on BenchLM's provisional leaderboard, 96 to 92. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 88.6% and 82.4%.
Ornith-1.0-397B has the edge for coding in this comparison, averaging 82.4 versus 76.4. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
Claude Opus 4.8 has the edge for agentic tasks in this comparison, averaging 80.1 versus 77.5. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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