GPT-6.1 Sol Pro vs GPT Chat Latest

Price, context window & benchmark comparison

GPT-6.1 Sol Pro

OpenAI

$2.00 / $10.00

Input / Output · per 1M tokens

GPT Chat Latest

OpenAI

$5.00 / $30.00

Input / Output · per 1M tokens

Compare different models

Verdict: GPT-6.1 Sol Pro is 2.8× cheaper than GPT Chat Latest on a typical 3:1 input/output mix. GPT-6.1 Sol Pro has the larger context window (1.1M vs 400K).

	GPT-6.1 Sol Pro	GPT Chat Latest
Input price / 1M	$2.00	$5.00
Output price / 1M	$10.00	$30.00
Blended price (3:1)	$4.00	$11.25
Cached input / 1M	$0.10	$0.50
Context window	1.1M	400K
Max output	128K	128K
Intelligence index	—	—
Coding index	—	—
Providers	7	—
Best provider uptime (30m)	100.0%	—
Vision input	Yes	Yes
Reasoning	Yes	No
Tool calling	Yes	Yes
Released	2026-09-29	2026-05-05
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, GPT-6.1 Sol Pro or GPT Chat Latest?

GPT-6.1 Sol Pro is 2.8× cheaper than GPT Chat Latest on a typical 3:1 input/output mix.

GPT-6.1 Sol Pro vs GPT Chat Latest: which has a bigger context window?

GPT-6.1 Sol Pro: 1,050,000 tokens. GPT Chat Latest: 400,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-6.1 Sol Pro ≈ $9,000, GPT Chat Latest ≈ $25,000.

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