# Solar Decide pricing and access

> Solar Decide is Upstage's decision endpoint on OpenRouter. Its listed price was $0.05 per million input tokens with free output on 2 Oct 2026.

Updated 2026-11-04 (Australia/Adelaide)

By Upstage · OpenRouter announcement: 2026-09-28 · HOSTED

Upstage's decision endpoint, available through OpenRouter. The date is when OpenRouter announced it; we have not found an announcement from Upstage itself. A faster sibling, [Solar Decide](<https://decisionmodels.ai/models/solar-decide>) Flash, joined on 8 Oct 2026 with a 524K context.

## Facts

- Price: OpenRouter lists $0.05 per million input tokens, output $0 (as of 2 Oct 2026); the launch post described a limited-time 50% discount · [Compare prices](<https://decisionmodels.ai/pricing>)
- Access: OpenRouter

## Claims and sources



## Links

- [Source: OpenRouter](<https://openrouter.ai/compare/upstage/solar-decide>)
- [Source: OpenRouter announcement](<https://x.com/OpenRouter/status/2104625184703742225>)
- [Source: Solar Decide Flash](<https://openrouter.ai/upstage/solar-decide-flash>)

## Related projects

### Session recaps sorted by Solar Decide

[Session recaps sorted by Solar Decide](<https://decisionmodels.ai/projects#project-codify-recap>)

[Source: Sidiora-Labs/codify](<https://github.com/Sidiora-Labs/codify>)

A local agent workflow tool written in C. Its recap command sends each session transcript to [Solar Decide](<https://decisionmodels.ai/models/solar-decide>), which labels every statement as a goal, decision, constraint, done or noise before a chat model writes the summary.

- Creator: Sidiora Labs

- Stars: 433

- Licence: MIT

- Model: [Solar Decide](<https://decisionmodels.ai/models/solar-decide>)

- Tags: agent, tooling

### Decision models as tool routers, measured

[Decision models as tool routers, measured](<https://decisionmodels.ai/projects#project-decision-agent-lab>)

[Source: Daewooki/decision-agent-lab](<https://github.com/Daewooki/decision-agent-lab>)

Calls [Jev](<https://decisionmodels.ai/models/jev>), OpenAI's [Decisions API](<https://decisionmodels.ai/models/openai-decisions>), Upstage [Solar Decide](<https://decisionmodels.ai/models/solar-decide>) and local Ollama models through one interface and logs version, latency, tokens and cost. On picking the right one of 12 tools for 40 Korean and English requests, the maker measured [Jev](<https://decisionmodels.ai/models/jev>) 1.13 at 40 of 40 and OpenAI Decisions at 0.90, against 0.85 for a generative model choosing directly.

- Creator: Daewooki

- Stars: 0

- Licence: MIT

- Model: [Jev](<https://decisionmodels.ai/models/jev>), [Decisions API](<https://decisionmodels.ai/models/openai-decisions>), [Solar Decide](<https://decisionmodels.ai/models/solar-decide>), [Nimble](<https://decisionmodels.ai/models/nimble>)

- Tags: agent, benchmark