Claude Opus 5.5 vs GPT-5.6 Sol.
model vs model · prices as of
GPT-5.6 Sol takes 2 of 5 rounds against Claude Opus 5.5. It is also the cheaper of the two to run, at $16 per million tokens against $32.
AnthropicClaude Opus 5.5
$32/M tokens
Anthropic list price, nothing below it is accounted for · $3.60 per 1,000 pages
1M context · tool calling · reads images
OpenAIwins 2 roundsGPT-5.6 Sol
$16/M tokens
cheapest we can explain, at Nous Portal · $1.80 per 1,000 pages
1.1M context · tool calling · reads images
List price in (lower wins)
$4/M
$4/M
List price out (lower wins)
$20/M
$20/M
Cheapest we can explain (lower wins)
none below list
$16/M at Nous Portal
Standard price (lower wins)
$32/M
$32/M
Cost per 1,000 pages (lower wins)
$3.60
$1.80
Context
1M tokens
1.1M tokens
Open weights
no
no
Tool calling
yes
yes
Structured output
yes
yes
Reads images
yes
yes
Reasoning
yes
yes
Released
22 Sept 2026
9 Jul 2026
Providers selling it
28
44
Price we measure against
the maker's own
the maker's own
Trains on your prompts (no is better)
no provider to check
not stated
Providers selling both · 21
Nous Portal$32 / $16
Azure AI Foundry$32 / $32
CrossModel$32 / $32
FastRouter$32 / $32
GitHub Copilot$32 / $32
Jiekou$32 / $32
Kilo Gateway$32 / $32
LLM Gateway$32 / $32
Claude Opus 5.5 then GPT-5.6 Sol, per million tokens · showing the 8 cheapest of 21
Go further
Add a third or fourth model, or switch the weighting, in the tool.
What moved in the last seven days
- GPT-5.6 Sol
Requesty$4 / $20 $4.40 / $2210% dearer · - GPT-5.6 Sol
OpenCode Zen$2 / $10 $4 / $20100% dearer · - GPT-5.6 Sol
Vercel AI Gateway$2 / $10 $4 / $20100% dearer · - GPT-5.6 SolVercel AI Gateway$4 / $20 $8 / $40100% dearer ·
- GPT-5.6 SolLLM Gateway$5 / $30 $4 / $2029% cheaper ·
- GPT-5.6 SolNous Portal$1.60 / $8 $2 / $1025% dearer ·
Frequently asked
- Which is cheaper, Claude Opus 5.5 or GPT-5.6 Sol?
- GPT-5.6 Sol, at $16 per million tokens against $32 for Claude Opus 5.5, three parts input to one part output, read on 23 Sept 2026.
- Where is each one cheapest?
- Claude Opus 5.5: nobody goes below the maker's own price with a reason we can point at, so $32 is the number to beat. GPT-5.6 Sol: $16 at Nous Portal.
- Can I buy both from one provider?
- Yes. 21 providers sell both: Nous Portal, Azure AI Foundry, CrossModel, FastRouter, GitHub Copilot, Jiekou, and more. The cheapest of them for the two together is Nous Portal.
- Which holds more context?
- GPT-5.6 Sol, at 1.1M tokens against 1M.
Prices exclude tax and are per million tokens, read 23 Sept 2026 from each provider's own catalog. The standard price blends three parts input to one part output; a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.