AI Models · Paid vs Paid

Claude Sonnet 4.6 Paid vs Claude Sonnet 4.5 Paid

Claude Sonnet 4.6 vs Claude Sonnet 4.5 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Choose Claude Sonnet 4.6 for the lower output price ($15/M vs $15/M). It also gives you the larger 1M context window.

Claude Sonnet 4.6 vs Claude Sonnet 4.5 specs

SpecClaude Sonnet 4.6Claude Sonnet 4.5
MakerAnthropicAnthropic
TypeProprietaryProprietary
Context window1M tokens1M tokens
Input price$3/M$3/M
Output price$15/M$15/M
Vision / multimodalYesYes
Tool / function callingYesYes
Self-hostableNo (API only)No (API only)
LicenseProprietaryProprietary

Feature comparison

CapabilityClaude Sonnet 4.6Claude Sonnet 4.5
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Claude Sonnet 4.6 vs Claude Sonnet 4.5

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Claude Sonnet 4.6
Claude Sonnet 4.5
Intelligence index
47.2
36.4
Coding index
63
52.1
GPQA
87.5%
83.4%
Humanity's Last Exam
30%
17.3%
Long Context Reasoning
70.7%
65.7%
SciCode
46.8%
44.7%
IFBench
56.6%
57.3%
τ²-Bench
75.7%
78.1%
τ-Bench Banking
30.5%
19%
Terminal-Bench
71.2%
55.8%
Terminal-Bench Hard
53%
35.6%
Math index
88
MMLU-Pro
87.5%
LiveCodeBench
71.4%
AIME 2025
88%
Speed
0 tok/s
0 tok/s
Latency
0s
0s
Intelligence per $
7.9
6.1

Benchmark data by Artificial Analysis.

How Claude Sonnet 4.6 and Claude Sonnet 4.5 score

🤝 Neck and neck on these criteria (3.1 vs 3.1 / 5).
CriterionClaude Sonnet 4.6Claude Sonnet 4.5
Cost-efficiency3.03.0
Context window5.05.0
Openness1.51.5
Self-hosting1.01.0
Multimodality5.05.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Claude Sonnet 4.6 Paid

Anthropic · Proprietary

Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...

Claude Sonnet 4.5 Paid

Anthropic · Proprietary

Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
Claude Sonnet 5Claude Sonnet 5 (batch)Claude Sonnet 4.5Claude Sonnet 4.5 (batch)Claude Sonnet 4Anthropic Claude Sonnet Latest
Other variants tracked
Claude Sonnet 5Claude Sonnet 5 (batch)Claude Sonnet 4.6Claude Sonnet 4.5 (batch)Claude Sonnet 4Anthropic Claude Sonnet Latest

Frequently asked questions

Claude Sonnet 4.6 vs Claude Sonnet 4.5 — which is cheaper?

Claude Sonnet 4.6 is cheaper on output ($15/M vs $15/M).

Which has the larger context window?

Claude Sonnet 4.6 offers the larger context window (1M tokens).

Claude Sonnet 4.6 vs Claude Sonnet 4.5 — which should I pick in 2026?

Choose Claude Sonnet 4.6 for the lower output price ($15/M vs $15/M). It also gives you the larger 1M context window.

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