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Claude Sonnet 4.6

Anthropicbalanced

Anthropic's Feb 17 2026 balanced model. Near-Opus performance at Sonnet pricing: SWE-bench Verified 79.6%, OSWorld 72.5%, 1M context. Best price-to-performance in the Claude lineup.

Context Window

1M

tokens

Max Output

64K

tokens

Input Price

$3

per 1M tokens

Output Price

$15

per 1M tokens

Speed

73

tokens/sec

Released

Feb 2026

2026-02-17

Blended Cost

$9.00

per 1M tokens

Value Score

10.0

quality per $

Capabilities

ChatVisionFunction CallingCode GenerationReasoning

Benchmarks

Quality Index
90
MMLU Pro
88.4
HumanEval (Coding)
93.1
MATH
85.6
Arena ELO
1467

Price vs Quality

6080100$1.00$10.00$100.00Blended cost per 1M tokens (log scale) →GPT-4o — $6.25/1M, quality 85GPT-4o Mini — $0.375/1M, quality 72o3 Mini — $2.75/1M, quality 88o3 — $5.00/1M, quality 94GPT-4.1 — $5.00/1M, quality 89Claude Opus 4 — $45.00/1M, quality 91Claude Sonnet 4 — $9.00/1M, quality 88Claude 3.5 Haiku — $2.40/1M, quality 75Gemini 2.5 Pro — $5.63/1M, quality 92Gemini 2.0 Flash — $0.250/1M, quality 74Llama 4 Maverick — $0.400/1M, quality 80Llama 4 Scout — $0.275/1M, quality 71Mistral Large 2 — $4.00/1M, quality 79Codestral — $0.600/1M, quality 76DeepSeek V3 — $0.685/1M, quality 86DeepSeek R1 — $1.37/1M, quality 91Grok 3 — $9.00/1M, quality 87Grok 3 Mini — $0.400/1M, quality 78Command R+ — $6.25/1M, quality 68Amazon Nova Pro — $2.00/1M, quality 70Qwen 2.5 72B — $0.600/1M, quality 80Qwen 2.5 Coder 32B — $0.300/1M, quality 74Sonar Pro — $9.00/1M, quality 78GPT-5.5 — $17.50/1M, quality 97GPT-5.5 Pro — $105.00/1M, quality 96Claude Opus 4.7 — $15.00/1M, quality 96Gemini 3.1 Pro — $7.00/1M, quality 96DeepSeek V4 Pro — $1.32/1M, quality 89DeepSeek V4 Flash — $0.210/1M, quality 84Qwen 3.6 Plus — $3.50/1M, quality 86Grok 4.3 — $1.88/1M, quality 93Kimi K2.6 — $2.11/1M, quality 92Kimi K3 — $9.00/1M, quality 97GLM-5.1 — $2.03/1M, quality 88Claude Opus 4.8 — $15.00/1M, quality 98Qwen 3.7 Max — $5.00/1M, quality 94Claude Fable 5 — $30.00/1M, quality 100MiniMax M3 — $1.50/1M, quality 89GPT-5.6 Sol — $17.50/1M, quality 98GPT-5.6 Terra — $7.00/1M, quality 93GPT-5.6 Luna — $0.700/1M, quality 83Gemini 3.6 Flash — $2.25/1M, quality 90Gemini 3.5 Flash-Lite — $1.40/1M, quality 79Claude Sonnet 5 — $9.00/1M, quality 93GLM-5.2 — $2.90/1M, quality 91Claude Opus 5 — $15.00/1M, quality 99Claude Mythos 5 — $30.00/1M, quality 100Grok 4.5 — $4.00/1M, quality 94Qwen3.8 Max — $4.00/1M, quality 96Claude Sonnet 4.6 — $9.00/1M, quality 90Claude Sonnet 4.6
Cheaper is left, more capable is up. 12 of 49 priced models are both cheaper and score at least as high. Self-host models are left off the price axis — their cost depends on the hardware you run them on, not on tokens.

Context Window in Context

  • ▸ Claude Sonnet 4.61M
  • GPT-4.11M
  • Gemini 2.5 Pro1M
  • Gemini 2.0 Flash1M
  • Llama 4 Maverick1M
  • GPT-5.51M
  • GPT-5.5 Pro1M
  • Claude Opus 4.71M
Bar length is logarithmic — each full step is 10× the tokens. Shown against the models with the nearest context windows, not the directory extremes.
Try in Playground Use via Swfte ConnectAnthropic Docs

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About Claude Sonnet 4.6

Claude Sonnet 4.6 is a balanced AI model by Anthropic, released on February 17, 2026. It supports a context window of 1000K tokens and can generate up to 64K output tokens.

At $3 per million input tokens and $15 per million output tokens, its blended cost of $9.00/1M tokens places it in the premium pricing tier. Its value score of 10.0 reflects the balance of quality and cost.

Using Claude Sonnet 4.6 with Swfte

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