Compare GPT-5.4 by OpenAI against Llama 3.1 70B (Instruct) by Meta AI, context windows of 1.1M vs 128K, tested across 51 shared challenges. Updated April 2026.
GPT-5.4 and Llama 3.1 70B (Instruct) are both competitive models. GPT-5.4 costs $2.5/M input tokens vs $0.59/M for Llama 3.1 70B (Instruct). Context windows: 1050K vs 128K tokens. Compare their real outputs side by side below.
GPT-5.4 is made by openai while Llama 3.1 70B (Instruct) is from meta. GPT-5.4 has a 1050K token context window compared to Llama 3.1 70B (Instruct)'s 128K. On pricing, GPT-5.4 costs $2.5/M input tokens vs $0.59/M for Llama 3.1 70B (Instruct).
No community votes yet. On paper, GPT-5.4 has the edge — bigger model tier, newer, bigger context window.
Llama 3.1 70B (Instruct) is 19x cheaper per token — worth considering if cost matters.
GPT-5.4 uses 184.4x more headings
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare GPT-5.4 by OpenAI against Llama 3.1 70B (Instruct) by Meta AI, context windows of 1.1M vs 128K, tested across 51 shared challenges. Updated April 2026.
GPT-5.4 and Llama 3.1 70B (Instruct) are both competitive models. GPT-5.4 costs $2.5/M input tokens vs $0.59/M for Llama 3.1 70B (Instruct). Context windows: 1050K vs 128K tokens. Compare their real outputs side by side below.
GPT-5.4 is made by openai while Llama 3.1 70B (Instruct) is from meta. GPT-5.4 has a 1050K token context window compared to Llama 3.1 70B (Instruct)'s 128K. On pricing, GPT-5.4 costs $2.5/M input tokens vs $0.59/M for Llama 3.1 70B (Instruct).
No community votes yet. On paper, GPT-5.4 has the edge — bigger model tier, newer, bigger context window.
Llama 3.1 70B (Instruct) is 19x cheaper per token — worth considering if cost matters.
GPT-5.4 uses 184.4x more headings
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

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46 fights queued
34+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy