Head-to-head AI model comparison graphic: GPT-6.1 Terra (OpenAI) vs GPT-6 Sol (OpenAI). Intelligence index 51.3 vs 44.2; output speed 114 vs 127 tokens per second; time to first token 6.2 min vs 91s; output price $5.00 vs $10.00 per million tokens; input price $1.00 vs $2.00 per million tokens. franklineh.com
GPT-6.1 Terra vs GPT-6 Sol: head-to-head AI benchmark comparison. GPT-6.1 Terra leads on intelligence index, output price and input price; GPT-6 Sol leads on output speed and time to first token.
Head to headUpdated

GPT-6.1 Terra Max vs GPT-6 Sol Max: benchmark scores compared

GPT-6.1 Terra Max leads the intelligence index 51.3 to 44.2. GPT-6.1 Terra Max costs 50% less on blended price. Benchmarks, sample bills, speed and a verdict.

Pick it for GPT-6.1 Terra · Max

  • Higher intelligence index: 51.3 against 44.2.
  • Lower cost: $2.00 against $4.00 for 1 million input and 200,000 output tokens.
  • The newer release (October 2026).

Pick it for GPT-6 Sol · Max

  • Shorter wait for the first token: 91 seconds against 6.2 minutes.
  • Faster output: 127 tokens per second against 114 tokens per second.

By the numbers

MetricGPT-6.1 Terra (Max)GPT-6 Sol (Max)
Intelligence Index51.344.2
Input price (per 1M tokens)$1.00$2.00
Output price (per 1M tokens)$5.00$10.00
Output speed (tokens/s)114127
Time to first token6.2 min91s
Release date2026-10-262026-09-22

If you already build on OpenAI, both GPT-6.1 Terra (Max) and GPT-6 Sol (Max) are on the menu, and they are not interchangeable. Everything below is read from the benchmark, price and speed data in Franklin AI's catalogue; nothing here comes from a hands-on test. The biggest separation is in overall capability: 51.3 for GPT-6.1 Terra Max against 44.2 for GPT-6 Sol Max.

The headline benchmark

On the intelligence index, GPT-6.1 Terra Max scores 51.3 against 44.2 for GPT-6 Sol Max. A lead of this size is hard to dismiss as noise. Put another way, GPT-6 Sol Max would need 16% more on this index to draw level.

For context, that places GPT-6.1 Terra Max 14th and GPT-6 Sol Max 26th out of 109 scored models still on offer.

Neither model has a separate coding or math index recorded yet, so those narrower comparisons will have to wait for more data.

When they came out

GPT-6.1 Terra Max arrived on October 26, 2026, 34 days after GPT-6 Sol Max (September 22, 2026). That is close enough to count them as the same generation.

Running costs

GPT-6.1 Terra Max lists $1.00 per million input tokens and $5.00 per million output tokens; GPT-6 Sol Max lists $2.00 and $10.00. That makes GPT-6.1 Terra Max's output 50% cheaper.

A reference job of 1 million input tokens and 200,000 output tokens costs $2.00 with GPT-6.1 Terra Max and $4.00 with GPT-6 Sol Max, so GPT-6.1 Terra Max saves $2.00. A bigger example, an agent that reads 50 million tokens and writes 5 million in a month, costs $75.00 on GPT-6.1 Terra Max and $150 on GPT-6 Sol Max: a gap of $75.00.

Throughput and time to first token

GPT-6.1 Terra Max generates about 114 tokens per second and GPT-6 Sol Max about 127 tokens per second. On long outputs, that is a real advantage for GPT-6 Sol Max. Before any text appears, GPT-6.1 Terra Max takes 6.2 minutes and GPT-6 Sol Max 91 seconds. GPT-6 Sol Max gets to its first token 4.1 times as fast. A first-token wait of that length suits background work better than live conversation.

For a 1,500-token response, first token plus generation comes to roughly 6.4 minutes on GPT-6.1 Terra Max and 103 seconds on GPT-6 Sol Max.

Value for money

Dividing the blended price by the intelligence index gives a rough cost per point: $0.039 for GPT-6.1 Terra Max and $0.090 for GPT-6 Sol Max, per million tokens. With the higher score and the lower cost per point, GPT-6.1 Terra Max is the better value per point on these numbers.

Common questions about GPT-6.1 Terra Max and GPT-6 Sol Max

Is GPT-6.1 Terra Max better than GPT-6 Sol Max?

It depends on what you need: GPT-6.1 Terra Max scores higher on the intelligence index, 51.3 to 44.2; GPT-6.1 Terra Max is 50% cheaper on blended price; and GPT-6 Sol Max streams output 1.1 times as fast.

When were GPT-6.1 Terra Max and GPT-6 Sol Max released?

GPT-6.1 Terra Max is newer. It was released on October 26, 2026, 34 days after GPT-6 Sol Max (September 22, 2026).

Does GPT-6.1 Terra Max respond faster than GPT-6 Sol Max?

GPT-6 Sol Max generates output faster, at 127 tokens per second against 114 tokens per second. GPT-6 Sol Max reaches its first token sooner (91 seconds against 6.2 minutes).

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.

How much do GPT-6.1 Terra Max and GPT-6 Sol Max cost?

GPT-6.1 Terra Max is cheaper on a blended basis. GPT-6.1 Terra Max lists $1.00 per million input tokens and $5.00 per million output tokens; GPT-6 Sol Max lists $2.00 and $10.00. For 1 million input and 200,000 output tokens that is $2.00 against $4.00.

Final whistle

The verdict: GPT-6.1 Terra Max has more going for it here, but GPT-6 Sol Max is not without an argument. Pick GPT-6.1 Terra Max if you need the higher overall score (51.3 against 44.2) and cost matters ($5.00 against $10.00 per million output tokens). Pick GPT-6 Sol Max if users are waiting on the first word and long outputs need to finish quickly.

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 GPT-6.1 Terra (Max) and GPT-6 Sol (Max) pages. The AI Benchmark methodology explains how that data is collected and shown.

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