AI Speed Comparison

Comprehensive speed analysis — time to first token (TTFT), output speed in tokens per second, and per-provider endpoint performance for models available on multiple platforms.

Ultra Fast (100+ tok/s)

Fast (50-99 tok/s)

Models with TTFT data

Multi-provider models

Time to First Token (TTFT)

How quickly the model starts responding. Lower is better — critical for real-time applications and chat interfaces.

#	Model	TTFT	Output Speed	Quality
1	Gemini 2.0 Flash Lite Google	120ms	450 tok/s	76.0
2	Gemini 2.0 Flash Google	140ms	400 tok/s	81.0
3	GPT-4.1 Nano OpenAI	150ms	200 tok/s	75.0
4	Gemini 2.5 Flash Google	160ms	350 tok/s	78.0
5	Mistral Small 3.1 24B Mistral	180ms	150 tok/s	76.0
6	Claude 3.5 Haiku Anthropic	200ms	120 tok/s	82.0
7	GPT-4o-mini OpenAI	210ms	150 tok/s	80.0
8	Claude Sonnet 4.6 Anthropic	240ms	90 tok/s	86.0
9	GPT-4.1 OpenAI	250ms	110 tok/s	77.0
10	Llama 4 Maverick Meta	250ms	95 tok/s	75.0
11	Claude Sonnet 4 Anthropic	260ms	80 tok/s	79.0
12	Gemini 2.5 Pro Google	270ms	90 tok/s	83.0
13	Claude Opus 4.6 Anthropic	280ms	50 tok/s	89.0
14	Llama 3.3 70B Instruct Meta	280ms	80 tok/s	79.0
15	Grok 3 Beta xAI	290ms	70 tok/s	85.0
16	GPT-4o (extended) OpenAI	290ms	100 tok/s	75.0
17	Mistral Large Mistral	310ms	80 tok/s	86.0
18	GPT-5.2 OpenAI	320ms	85 tok/s	90.0
19	Qwen2.5 72B Instruct Alibaba	340ms	65 tok/s	71.0
20	Grok 4 xAI	350ms	50 tok/s	88.0
21	Claude Opus 4 Anthropic	350ms	30 tok/s	84.0
22	GPT-5 OpenAI	380ms	75 tok/s	87.0
23	DeepSeek V3.2 DeepSeek	400ms	49 tok/s	86.0
24	Qwen3 235B A22B Alibaba	420ms	40 tok/s	87.0
25	DeepSeek R1 DeepSeek	500ms	30 tok/s	85.0
26	O4 Mini OpenAI	550ms	65 tok/s	90.0
27	O3 OpenAI	1200ms	15 tok/s	88.0

Output Speed Rankings

Tokens generated per second. Higher is better for long-form content generation. See full rankings →

1 Gemini 2.0 Flash Lite

450 tok/s

2 Gemini 2.0 Flash

400 tok/s

3 Gemini 2.5 Flash

350 tok/s

4 GPT-4.1 Nano

200 tok/s

5 GPT-4o-mini

150 tok/s

6 Mistral Small 3.1 24B

150 tok/s

7 Claude 3.5 Haiku

120 tok/s

8 GPT-4.1

110 tok/s

9 GPT-4o (extended)

100 tok/s

10 Llama 4 Maverick

95 tok/s

11 Claude Sonnet 4.6

90 tok/s

12 Gemini 2.5 Pro

90 tok/s

13 GPT-5.2

85 tok/s

14 Mistral Large

80 tok/s

15 Claude Sonnet 4

80 tok/s

About Speed Measurements

TTFT (Time to First Token) — How long until the model starts generating its response, measured in milliseconds. Critical for chat applications where perceived responsiveness matters.

Output Speed (tok/s) — How many tokens the model generates per second once it starts responding. Important for long-form content generation.

Speed data sourced from Artificial Analysis and provider benchmarks. Actual speeds may vary based on load, region, and input complexity.

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