GPT-6.1 Sol vs Claude Sonnet 5.5: API price comparison (2026)
As of 2026-10-17, By blended price, GPT-6.1 Sol is cheaper — about 1.0× less. GPT-6.1 Sol: $2 / $10 (Official (Intl)); Claude Sonnet 5.5: $2 / $10 (Official (Intl)), per 1M input/output tokens.
 GPT-6.1 Sol |  Claude Sonnet 5.5 | |
|---|---|---|
| Blended | $4 | $4 |
| Cheapest channel | Official (Intl) | Official (Intl) |
| AA Intelligence | 51.8 | 56 |
| Context | 1.1M | 1M |
| China usability | ✗CN direct?Alipay·unverified?ID·unverified?Intl card·unverified Official (Intl) | ✗CN direct?Alipay·unverified?ID·unverified?Intl card·unverified Official (Intl) |
GPT-6.1 Sol
| Channel | Blended | Input | Output | Cached | Access & payment (this channel) | Notes | Source |
|---|---|---|---|---|---|---|---|
| Official (Intl) $2 / $10 | $4 | $2 | $10 | $0.1 | ✗CN direct?Alipay·unverified?ID·unverified?Intl card·unverified conditions source2026-10-17 | Standard tier, short context. Long context: in $4.00 / out $15.00 models.dev ✓ | platform.openai.com 2026-10-17 |
| OpenRouter $2 / $10 | $4 | $2 | $10 | $0.1 | ✗CN direct✓Alipay✗ID✗Intl card conditions source2026-10-17 | Original vendor endpoint: OpenAI Licensed cloud alternative: Azure $2 / $10 | openrouter.ai 2026-10-17 |
Claude Sonnet 5.5
| Channel | Blended | Input | Output | Cached | Access & payment (this channel) | Notes | Source |
|---|---|---|---|---|---|---|---|
| Official (Intl) $2 / $10 | $4 | $2 | $10 | $0.1 | ✗CN direct?Alipay·unverified?ID·unverified?Intl card·unverified conditions source2026-10-17 | Cache write $2.50/MTok; batch -50% | www.anthropic.com 2026-10-17 |
| OpenRouter $2 / $10 | $4 | $2 | $10 | $0.1 | ✗CN direct✓Alipay✗ID✗Intl card conditions source2026-10-17 | Original vendor endpoint: Anthropic Licensed cloud alternative: Google $2 / $10 | openrouter.ai 2026-10-17 |
GPT (OpenAI) hub · Claude hub ·
FAQ
Which is cheaper, GPT-6.1 Sol or Claude Sonnet 5.5?
As of 2026-10-17, By blended price, GPT-6.1 Sol is cheaper — about 1.0× less. GPT-6.1 Sol: $2 / $10 (Official (Intl)); Claude Sonnet 5.5: $2 / $10 (Official (Intl)), per 1M input/output tokens.
What are the context windows of GPT-6.1 Sol and Claude Sonnet 5.5?
GPT-6.1 Sol: 1.1M; Claude Sonnet 5.5: 1M.
Can I use GPT-6.1 Sol and Claude Sonnet 5.5 directly from mainland China?
GPT-6.1 Sol（Official (Intl)）direct no, Alipay unverified; Claude Sonnet 5.5（Official (Intl)）direct no, Alipay unverified. Via each cheapest channel.
Which is stronger, GPT-6.1 Sol or Claude Sonnet 5.5?
Artificial Analysis Intelligence Index (via OpenRouter rankings, 2026-10-17): GPT-6.1 Sol 51.8, Claude Sonnet 5.5 56.
How much can I save switching between them?
Blended (0.75×in+0.25×out): GPT-6.1 Sol $4 vs Claude Sonnet 5.5 $4, a difference of $0 per 1M tokens.