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Compare / head-to-head

Claude 3.7 SonnetvsClaude Sonnet 4

Claude Sonnet 4 leads 2 of 3 shared benchmarks. Both list the same combined token price. Both offer a 200K-token context window.

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
1 – 2
Claude Sonnet 4 leads
Cheaper per token
Tie
list price, input + output
Larger context
Tie
both 200K tokens
Provider uptime (30d)
100%
Anthropic
Claude 3.7 Sonnet
Anthropic · released 2025-02-24
textvision
Context
200K
Max out
128K
Input /1M
$3
Output /1M
$15
Cached /1M
$0.3
Scores
5 · 5 core
Claude Sonnet 4
Anthropic · released 2025-05-22
textvision
Context
200K
Max out
64K
Input /1M
$3
Output /1M
$15
Cached /1M
$0.3
Scores
4 · 4 core
Quality

Benchmark matrix

BenchmarkClaude 3.7 SonnetClaude Sonnet 4ΔEdge
Reported by both · 3
SWE-bench Verified70.3% 72.7% -2.4 ptClaude Sonnet 4
GPQA Diamond79.7% epoch79.2% epoch+0.5 ptClaude 3.7 Sonnet
OTIS Mock AIME 2024-2025 (Epoch AI run)57.8% epoch71.1% epoch-13.3 ptClaude Sonnet 4
Only Claude 3.7 Sonnet reports · 2
AIME 202549.2% matharenanot reported
SWE-bench Verified (Epoch AI run)61% epochnot reported
Only Claude Sonnet 4 reports · 1
AIME 2024 (no extended thinking)not reported33.1%
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Claude 3.7 Sonnet minus Claude Sonnet 4 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecClaude 3.7 SonnetClaude Sonnet 4Edge
Context window200K tokens200K tokensTie
Max output128K tokens64K tokensClaude 3.7 Sonnet
Input price / 1M$3 $3 Tie
Output price / 1M$15 $15 Tie
Cached input / 1M$0.3 $0.3 Tie
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$18$18Tie
Modalitiestext · visiontext · visionTie
Released2025-02-242025-05-22
Cited benchmark scores54
Reliability

Anthropic status

All providers
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Which one wins on your data?

Public benchmarks are a starting point. Run Claude 3.7 Sonnet and Claude Sonnet 4 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.