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    Anthropic

    Claude Sonnet 4.6

    Anthropic's February 17, 2026 Sonnet model remains active as a legacy option after Sonnet 5. It supports text and image input, a 1M-token context window, up to 128K output and adaptive thinking. Standard Claude API rates are $3/$15 per MTok (input/output).

    1M tokens
    Multimodal
    Pro
    Superseded
    Provider
    Anthropic
    Context
    1M
    Catalog · As of Aug 11, 2026Stale · 31d old
    yno subscription tier
    Pro
    Released
    Feb 17, 2026
    Speed
    Fast
    Reasoning
    Expert
    Modality
    Multimodal

    Benchmarks

    Quality

    AA Intelligence Index
    24.7points
    Artificial Analysis · Date unknownAge unknown
    GPQA Diamond
    79.9%
    Artificial Analysis · Date unknownAge unknown

    Speed and latency

    Output speed
    102tokens/s
    Artificial Analysis · As of Aug 11, 2026Stale · 31d old

    API pricing

    API input cost
    $3.00/ 1M tokens
    Artificial Analysis · Date unknownAge unknown
    API output cost
    $15.00/ 1M tokens
    Artificial Analysis · Date unknownAge unknown

    Benchmark variant: Claude Sonnet 4.6 (Non-reasoning, High Effort)

    AA data retrieved Sep 11, 2026 · Artificial Analysis

    Indexes use points; evaluations use accuracy percentages. API measurements do not measure yno application performance. Methodology

    Capabilities

    • Code
    • Reasoning
    • Long Context
    • Vision
    • Debugging

    Use cases

    • Full-stack development
    • Codebase-wide analysis
    • Deep research
    • Complex debugging

    Strengths

    • Text and image input
    • 1M context / 128K output
    • Adaptive thinking
    • $3 input / $15 output per MTok

    Best for

    Teams maintaining Sonnet 4.6 integrations or comparing migration to Sonnet 5

    Use Claude Sonnet 4.6 in yno.ai

    No credit card required

    Related models

    Claude Opus 5

    Anthropic

    Claude Mythos 5

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    Frequently asked

    What is Claude Sonnet 4.6?
    Anthropic's February 17, 2026 Sonnet model remains active as a legacy option after Sonnet 5. It supports text and image input, a 1M-token context window, up to 128K output and adaptive thinking. Standard Claude API rates are $3/$15 per MTok (input/output).
    How much does Claude Sonnet 4.6 cost in yno.ai?
    Claude Sonnet 4.6 is available on the Pro tier of yno.ai.
    What can Claude Sonnet 4.6 do?
    Claude Sonnet 4.6 is best for Teams maintaining Sonnet 4.6 integrations or comparing migration to Sonnet 5. Its main capabilities include Code, Reasoning, Long Context, Vision, Debugging.
    How does Claude Sonnet 4.6 compare to other models?
    Claude Sonnet 4.6 excels at Text and image input and is recommended for Full-stack development, Codebase-wide analysis, Deep research, Complex debugging. See related models below.
    How do I use Claude Sonnet 4.6 in yno.ai?
    Sign up for yno.ai, select Claude Sonnet 4.6 from the model picker, and start chatting.