Claude Haiku 4.5 (latest) vs GPT-6.1 Sol Pro
Prices checked
Claude Haiku 4.5 (latest) and GPT-6.1 Sol Pro split the 5 rounds this table counts: the maker's two prices, the cheapest price, the maker's blended price and context. The weighting you pick decides the rest.
AnthropicClaude Haiku 4.5 (latest)
200k context · tool calling · reads images
$6.87/M tokensCheapest price, at Poe · $0.77 per 1,000 pages
OpenAIGPT-6.1 Sol Pro
1.1M context · tool calling · reads images
$8/M tokensOpenAI's own price · $0.90 per 1,000 pages
Maker's price in (lower wins)
$1/M
$1/M
Maker's price out (lower wins)
$5/M
$5/M
Cheapest price (lower wins)
$6.87/M at Poe
none below the maker
Maker's price, blended (lower wins)
$8/M
$8/M
Cost per 1,000 pages (lower wins)
$0.77
$0.90
Context
200k tokens
1.1M tokens
Open weights
no
not published
Tool calling
yes
yes
Structured output
yes
yes
Reads images
yes
yes
Reasoning
yes
yes
Released
15 Oct 2025
29 Sept 2026
Providers selling it
50
6
Price we measure against
the maker's own
the maker's own
Trains on your prompts (no is better)
not published
no provider to check
Providers selling both · 5
NanoGPT$8 / $6.10
Azure AI Foundry$8 / $16
Kilo Gateway$8 / $16
Nous Portal$8 / $16
OpenRouter$8 / $16
Claude Haiku 4.5 (latest), then GPT-6.1 Sol Pro, per million tokens.
Go further
Add a third or fourth model, or change the weighting, in the tool.
What moved this week
Requesty · 10% dearer · $1.10 / $5.50 $1 / $5
Frequently asked
- Which is cheaper, Claude Haiku 4.5 (latest) or GPT-6.1 Sol Pro?
- Claude Haiku 4.5 (latest), at $6.87 per million tokens against $8 for GPT-6.1 Sol Pro, blended 3 in : 1 out, read on 30 Sept 2026.
- Where is each one cheapest?
- Claude Haiku 4.5 (latest): $6.87 at Poe. GPT-6.1 Sol Pro: nobody sells it below the maker's own price with a stated reason, so $8 is the number to beat.
- Can I buy both from one provider?
- Yes. 5 providers sell both: NanoGPT, Azure AI Foundry, Kilo Gateway, Nous Portal, OpenRouter. The cheapest of them for the two together is NanoGPT.
- Which holds more context?
- GPT-6.1 Sol Pro, at 1.1M tokens against 200k.
Prices exclude tax, read 30 Sept 2026 from each provider's own catalog. They are per M tokens, blended 3 in : 1 out, and a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.
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