GPT-6.1 Sol評測：Astra五分之一價格，夠用嗎 | GPT-6.1 Sol Review: 1/5 Astra's Price, Still Good Enough?

10月 05, 2026

By Kit 小克 | AI Tool Observer | 2026-10-06

🇹🇼 GPT-6.1 Sol評測：Astra五分之一價格，夠用嗎

什麼是GPT-6.1 Sol？

GPT-6.1 Sol 是OpenAI在2026年9月底DevDay推出的新款程式碼模型，主打「接近Astra的智能，只要五分之一的價格」。它鎖定agentic coding（代理式寫程式）、電腦操作（computer use）和一般專業工作，現已開放ChatGPT Plus、Pro、Business、Enterprise、Edu用戶使用，開發者也能透過API呼叫gpt-6.1-sol。

GPT-6.1 Sol多少錢？比Astra便宜多少？

價格是GPT-6.1 Sol最大的話題點：

輸入token：每百萬token 2美元（Astra是10美元）
輸出token：每百萬token 10美元（Astra是50美元）
快取輸入：每百萬token 0.10美元
情境窗口：高達105萬token

換算下來,確實是Astra定價的五分之一,這也是OpenAI主打的賣點。

GPT-6.1 Sol寫程式實力如何？真的能打Claude嗎？

官方自評分數不差：DeepSWE v1.1拿下75.22%、OSWorld拿下71.42%，在OpenAI自家測試中追上甚至小贏Astra。但第三方測試結果不太一樣——在Terminal-Bench 4.0和SciCode這類獨立基準測試中,Claude Sonnet 5.5領先GPT-6.1 Sol七到八分;綜合指標Artificial Analysis Index上,Claude Opus 5.5拿58分,GPT-6.1 Sol只有52分。

簡單說:兩家公司各自選了對自己有利的測試當頭條,但攤開獨立評測,GPT-6.1 Sol的整體智能還是不如Opus 5.5和Sonnet 5.5。開發者實測回饋則比較一致:在Codex裡跑GPT-6.1 Sol速度確實快,適合需要大量輸出、對品質要求沒那麼極致的任務。

值得從Claude或Astra換過去嗎？

如果你的工作是大量跑批次任務、重複性高的程式碼生成,GPT-6.1 Sol的價格優勢很有吸引力,105萬token的情境窗口也適合處理大型專案。但如果你在意程式碼品質的上限,尤其是複雜的架構決策或疑難除錯,目前獨立測試顯示Claude Sonnet 5.5和Opus 5.5仍是更穩的選擇。便宜不等於最好用,這點OpenAI自己的行銷文案不會告訴你。

好不好用，試了才知道。

🇺🇸 GPT-6.1 Sol Review: 1/5 Astra's Price, Still Good Enough?

What Is GPT-6.1 Sol?

GPT-6.1 Sol is OpenAI's new coding-focused model, launched at DevDay in late September 2026 with the pitch of "near-Astra intelligence for a fifth of the price." It targets agentic coding, computer use, and general professional work, and is now live for ChatGPT Plus, Pro, Business, Enterprise, and Edu users, with API access as gpt-6.1-sol.

How Much Does GPT-6.1 Sol Cost Compared to Astra?

Pricing is the headline feature here:

Input tokens: $2 per million (vs. Astra's $10)
Output tokens: $10 per million (vs. Astra's $50)
Cached input: $0.10 per million tokens
Context window: up to 1.05 million tokens

That's roughly one-fifth of Astra's standard rate, exactly as OpenAI advertises.

Is GPT-6.1 Sol Actually Good at Coding — Can It Beat Claude?

OpenAI's self-reported numbers look solid: 75.22% on DeepSWE v1.1 and 71.42% on OSWorld, matching or slightly beating Astra on OpenAI's own tests. But independent benchmarks tell a different story — on Terminal-Bench 4.0 and SciCode, Claude Sonnet 5.5 leads GPT-6.1 Sol by seven to eight points, and on the Artificial Analysis Index, Claude Opus 5.5 scores 58 versus GPT-6.1 Sol's 52.

In short: both companies picked the benchmarks that favor them, but the independent numbers suggest GPT-6.1 Sol's overall intelligence still trails Opus 5.5 and Sonnet 5.5. Developer feedback is fairly consistent, though — it's noticeably fast in Codex, which makes it a decent pick for high-volume tasks where raw quality matters less.

Should You Switch From Claude or Astra?

If your workload is batch-heavy, repetitive code generation, GPT-6.1 Sol's price-to-performance ratio is genuinely attractive, and the 1.05M-token context window helps with large codebases. But if you care about the ceiling on code quality — complex architecture decisions, hard debugging — independent testing still points to Claude Sonnet 5.5 or Opus 5.5 as the safer bet. Cheap doesn't automatically mean good, and that's the part OpenAI's marketing copy won't tell you.

You won't know if it's good until you try it.

Sources / 資料來源

常見問題 FAQ

GPT-6.1 Sol是什麼時候推出的？

GPT-6.1 Sol在2026年9月底OpenAI DevDay發布，主打比Astra便宜五倍的價格提供接近的編碼能力。

GPT-6.1 Sol比Claude Sonnet 5.5好用嗎？

獨立測試（Terminal-Bench 4.0、SciCode）顯示Claude Sonnet 5.5領先GPT-6.1 Sol約7-8分，整體智能指標Opus 5.5也高於GPT-6.1 Sol。

GPT-6.1 Sol適合哪種工作？

適合大量批次處理、重複性高、對速度與成本敏感的程式碼生成任務，情境窗口達105萬token。

GPT-6.1 Sol要怎麼使用？

ChatGPT Plus/Pro/Business/Enterprise/Edu用戶可直接在ChatGPT和Codex中使用，開發者可透過API呼叫gpt-6.1-sol。

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