Anthropicproprietary
Released: 2024-10-22Claude 3.5 Sonnet (v2)
Foundation model evaluated on LiveBench September 2026 by Anthropic.
Intelligence Index
87.9/ 100
Calibrated multi-domain compositeThroughput Speed
—tok/sec
Output streaming throughputTime To First Token
—ms
Initial chunk server latencyLiveBench Contam-Free
78.5%
September 2026 suite scoreLiveBench Multi-Domain Evaluation Breakdown
Monthly refreshed contamination-free test setsLogical Reasoning83.5%
Coding & Repo Repair79.2%
Mathematics (AIME)82.0%
Data Analysis & Tables76.0%
Language & Comprehension75.5%
Instruction Following75.0%
Sourced Benchmark Evaluations (3)
Verified performance across authoritative benchmarks with provenance tracking.Anthropic Python SDKAPI Ready
import anthropic
client = anthropic.Anthropic()
message = client.messages.create(
model="claude-3-5-sonnet-20241022",
max_tokens=2048,
temperature=0,
messages=[{"role": "user", "content": "Execute SWE-bench verified repository fix"}]
)
print(message.content[0].text)Evaluation & Sourcing Notes
Scores listed for Claude 3.5 Sonnet (v2) represent verified evaluations extracted from official research papers, independent evaluation suites (HELM, LMSYS, OpenCompass, LiveBench), and verified audit reports.
All benchmarks marked as saturated or deprecated reflect historical performance where the benchmark no longer provides active discriminative power.