Modeldex

Upstage · Text line

Solar Pro

3 stages over 15 months, from solar-pro2 in May 2025 to Solar Pro 4 in Aug 2026.

Evolution chamber01 / 03
Upstage

solar-pro2

CTX66K
Reasoning · Tools
TextInput$0.25/M
TextOutput$0.25/M

Flagship model for demanding analysis, coding, and production agent workflows

PaidProprietary573/1044
Ready to evolve

Every generation. A new possibility.

solar-pro2 · May 2025
View model : solar-pro2

3 stages, from solar-pro2 (May 2025) to Solar Pro 4 (Aug 2026). Press Evolve to watch each step.

How it grew

Context window

  1. 66Kv2
  2. 131Kv3
  3. 524Kv4

Max output

  1. 8Kv2
  2. 8Kv3
  3. 131Kv4

Output priceper 1M tokens, lower is better

  1. $0.25v2
  2. $0.25v3
  3. $1.20v4

Every stage

  1. v2 Stage 1

    Upstage

    solar-pro2

    CTX66K
    Reasoning · Tools
    TextInput$0.25/M
    TextOutput$0.25/M

    Flagship model for demanding analysis, coding, and production agent workflows

    PaidProprietary573/1044

  2. v3 Stage 2

    Upstage

    solar-pro3

    CTX131K
    Reasoning · Tools
    TextInput$0.25/M
    TextOutput$0.25/M

    Flagship model for demanding analysis, coding, and production agent workflows

    PaidProprietary737/1044

  3. v4 Stage 3

    Upstage

    Solar Pro 4

    CTX524K
    60Quality
    Reasoning · Tools
    TextInput$0.30/M
    TextOutput$1.20/M

    Upstage's flagship model, specialized for agentic use

    PaidProprietary968/1044

More Upstage lines

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