Gemini 3.8 Flash High vs Tencent Hy4: which responds faster?

Tencent Hy4 leads the intelligence index 34.6 to 30.8. Tencent Hy4 costs 17% less on blended price. Benchmarks, sample bills, speed and a verdict.

Metric	Gemini 3.8 Flash (High)	Tencent Hy4
Intelligence Index	30.8	34.6
Input price (per 1M tokens)	$0.75	$0.834
Output price (per 1M tokens)	$3.75	$2.501
Output speed (tokens/s)	121	94
Time to first token	27s	2.4s
Release date	2026-09-02	2026-11-03

Metric

Gemini 3.8 Flash (High)

Tencent Hy4

Intelligence Index

30.8

34.6

Input price (per 1M tokens)

$0.75

$0.834

Output price (per 1M tokens)

$3.75

$2.501

Output speed (tokens/s)

121

Time to first token

27s

2.4s

Release date

2026-09-02

2026-11-03

Gemini 3.8 Flash (High) from Google and Tencent Hy4 from Tencent are both tracked in Franklin AI's benchmark catalogue. What separates them most is responsiveness; Gemini 3.8 Flash High takes 27 seconds to produce its first token, Tencent Hy4 2.4 seconds. No hands-on testing went into this write-up; it summarises the recorded benchmark, price and speed data for both models.

Speed and latency

Gemini 3.8 Flash High generates about 121 tokens per second and Tencent Hy4 about 94 tokens per second. That makes Gemini 3.8 Flash High roughly 1.3 times as fast at writing. Time to first token is 27 seconds for Gemini 3.8 Flash High and 2.4 seconds for Tencent Hy4. Gemini 3.8 Flash High writes faster once it starts, but Tencent Hy4's head start is large enough that Tencent Hy4 still finishes first at any typical reply length; Gemini 3.8 Flash High only catches up beyond about 10,000 tokens.

Add the two numbers up for a 600-token reply and Tencent Hy4 finishes first: 32 seconds for Gemini 3.8 Flash High, 8.8 seconds for Tencent Hy4.

Which is newer

The release dates are September 2, 2026 for Gemini 3.8 Flash High and November 3, 2026 for Tencent Hy4, about 2 months apart.

What they cost

Per million tokens, Gemini 3.8 Flash High charges $0.75 for input and $3.75 for output, while Tencent Hy4 charges $0.834 and $2.501. The rates cross over. Gemini 3.8 Flash High is cheaper to feed and Tencent Hy4 is cheaper to hear back from.

A reference job of 1 million input tokens and 200,000 output tokens costs $1.50 with Gemini 3.8 Flash High and $1.33 with Tencent Hy4, so Tencent Hy4 saves $0.17. Scale it up to an agent that reads 50 million tokens and writes 5 million in a month and the bill is $56.25 for Gemini 3.8 Flash High against $54.20 for Tencent Hy4.

The headline benchmark

The catalogue puts Gemini 3.8 Flash High at 30.8 and Tencent Hy4 at 34.6 on its intelligence index. A lead of this size is hard to dismiss as noise.

Among 109 active scored models, Gemini 3.8 Flash High sits 50th and Tencent Hy4 42nd.

Specialist coding and math indexes are missing for both, so treat the overall score as the only capability signal here.

Is the price in proportion?

A blunt value measure, blended price over intelligence score, puts Gemini 3.8 Flash High at $0.049 and Tencent Hy4 at $0.036 per point. With the higher score and the lower cost per point, Tencent Hy4 is the better value per point on these numbers.

Frequently asked questions

Is Gemini 3.8 Flash High better than Tencent Hy4?

Not across the board: Tencent Hy4 scores higher on the intelligence index, 34.6 to 30.8; Tencent Hy4 is 17% cheaper on blended price; Gemini 3.8 Flash High streams output 1.3 times as fast; and Tencent Hy4 reaches its first token sooner.

Is Tencent Hy4 cheaper than Gemini 3.8 Flash High?

Tencent Hy4 is cheaper on a blended basis. Gemini 3.8 Flash High lists $0.75 per million input tokens and $3.75 per million output tokens; Tencent Hy4 lists $0.834 and $2.501. For 1 million input and 200,000 output tokens that is $1.50 against $1.33.

When were Gemini 3.8 Flash High and Tencent Hy4 released?

Tencent Hy4 is newer. It was released on November 3, 2026, about 2 months after Gemini 3.8 Flash High (September 2, 2026).

Does Gemini 3.8 Flash High respond faster than Tencent Hy4?

Gemini 3.8 Flash High generates output faster, at 121 tokens per second against 94 tokens per second. Tencent Hy4 reaches its first token sooner (2.4 seconds against 27 seconds). Counting the first-token wait, Tencent Hy4 finishes first for any reply shorter than about 10,000 tokens.

Where do these numbers come from?

The figures are the recorded benchmark, price and speed data in Franklin AI's model catalogue. This page is written from that data automatically; neither model was tested by hand for it.

Final whistle

On balance the numbers favour Tencent Hy4, though Gemini 3.8 Flash High keeps a case of its own. Pick Tencent Hy4 if users are waiting on the first word and you need the higher overall score (34.6 against 30.8). Pick Gemini 3.8 Flash High if you generate very long outputs, beyond about 10,000 tokens.

Where the numbers come from

The scores, speed and prices in this comparison come from independent third-party model evaluations that Franklin AI syncs each day, and the article was written from a snapshot of them. For the latest results, open the Gemini 3.8 Flash (High) and Tencent Hy4 pages. The AI Benchmark methodology explains how that data is collected and shown.