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Gemini 3.6 Flash vs GPT-6.1 Terra

Gemini 3.6 Flash and GPT-6.1 Terra are closely matched at 42.3 and 47.5 on the LLM Stats Score. GPT-6.1 Terra is 1.5x cheaper per token.

Google · OpenAI · Updated for 2026

Which is better?

Gemini 3.6 Flash and GPT-6.1 Terra are closely matched on the overall LLM Stats Score at 42.3 and 47.5.

On price, GPT-6.1 Terra is roughly 1.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-6.1 Terra also accepts a larger context window (1,050,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Gemini 3.6 Flash

  • you want predictable pricing at $1.50/M input and $7.50/M output

Choose GPT-6.1 Terra

  • your work emphasizes reasoning and coding — it leads those capability indexes
  • cost matters — it's about 1.5x cheaper per token
  • you process long inputs — it offers a 1,050,000 token context window
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

Gemini 3.6 Flash
Google
GPT-6.1 Terra
OpenAI
Core performance indexes
LLM Stats Score
42.3
#65
47.5
#36
Reasoning
39.4
#74
49.0
#19
Coding
27.2
#83
37.1
#30
Agents
26.6
#67
38.8
#12
Cost, coverage & limits
Benchmark wins
—
—
Input price
$1.50 / M
$1.00 / M
Output price
$7.50 / M
$5.00 / M
Context window
1,048,576
1,050,000

Individual benchmarks

7 reported for Gemini 3.6 Flash · 8 for GPT-6.1 Terra

No common benchmarks found

Gemini 3.6 Flash and GPT-6.1 Terradon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

GPT-6.1 Terra costs less

For input processing, Gemini 3.6 Flash ($1.50/1M tokens) is 1.5x more expensive than GPT-6.1 Terra ($1.00/1M tokens).

For output processing, Gemini 3.6 Flash ($7.50/1M tokens) is 1.5x more expensive than GPT-6.1 Terra ($5.00/1M tokens).

In conclusion, Gemini 3.6 Flash is more expensive than GPT-6.1 Terra.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Fri Oct 30 2026 • llm-stats.com
Google
Gemini 3.6 Flash
Input tokens$1.50
Output tokens$7.50
Best providerGoogle
OpenAI
GPT-6.1 Terra
Input tokens$1.00
Output tokens$5.00
Best providerOpenAI
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

GPT-6.1 Terra accepts 1,050,000 input tokens compared to Gemini 3.6 Flash's 1,048,576 tokens. GPT-6.1 Terra can generate longer responses up to 128,000 tokens, while Gemini 3.6 Flash is limited to 65,536 tokens.

Google
Gemini 3.6 Flash
Input1,048,576 tokens
Output65,536 tokens
OpenAI
GPT-6.1 Terra
Input1,050,000 tokens
Output128,000 tokens
Fri Oct 30 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 3.6 Flash and GPT-6.1 Terra support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemini 3.6 Flash

Text
Images
Audio
Video

GPT-6.1 Terra

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 3.6 Flash

Proprietary

Closed source

GPT-6.1 Terra

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.6 Flash was released on 2026-07-21, while GPT-6.1 Terra was released on 2026-10-26.

GPT-6.1 Terra is 3 months newer than Gemini 3.6 Flash.

Gemini 3.6 Flash

Jul 21, 2026

3 months ago

GPT-6.1 Terra

Oct 26, 2026

4 days ago

3mo newer

Knowledge Cutoff

When training data ends

Gemini 3.6 Flash has a knowledge cutoff of 2026-03-31, while GPT-6.1 Terra has a cutoff of 2026-06-01.

GPT-6.1 Terra has more recent training data (up to 2026-06-01), making it potentially better informed about events through that date compared to Gemini 3.6 Flash (2026-03-31).

Gemini 3.6 Flash

Mar 2026

GPT-6.1 Terra

Jun 2026

3 mo newer

Provider Availability

Gemini 3.6 Flash is available from Google. GPT-6.1 Terra is available from OpenAI.

Gemini 3.6 Flash

google logo
Google
Input Price:Input: $1.50/1MOutput Price:Output: $7.50/1M

GPT-6.1 Terra

openai logo
OpenAI
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Gemini 3.6 Flash and GPT-6.1 Terra side-by-side, then vote on the output you prefer.

Gemini 3.6 Flash
✓ Preferred
GPT-6.1 Terra
Open in Playground

FAQ

Common questions about Gemini 3.6 Flash vs GPT-6.1 Terra.

Which is better, Gemini 3.6 Flash or GPT-6.1 Terra?

Gemini 3.6 Flash and GPT-6.1 Terra are closely matched on the LLM Stats Score at 42.3 and 47.5. Gemini 3.6 Flash is made by Google and GPT-6.1 Terra is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 3.6 Flash compare to GPT-6.1 Terra in benchmarks?

Gemini 3.6 Flash scores CharXiv-R: 89.4%, OSWorld-Verified: 83.0%, Terminal-Bench 2.1: 78.0%, MLE-Bench: 63.9%, SWE-Bench Pro: 58.7%. GPT-6.1 Terra scores HealthBench Consensus: 95.1%, HealthBench Professional: 62.7%, Agents' Last Exam: 60.0%, Terminal-Bench-Science 0.1: 58.3%, MentalHealthBench: 55.5%.

Is Gemini 3.6 Flash cheaper than GPT-6.1 Terra?

GPT-6.1 Terra is 1.5x cheaper for input tokens. Gemini 3.6 Flash costs $1.50/M input and $7.50/M output via google. GPT-6.1 Terra costs $1.00/M input and $5.00/M output via openai.

What are the context window sizes for Gemini 3.6 Flash and GPT-6.1 Terra?

Gemini 3.6 Flash supports 1.0M tokens and GPT-6.1 Terra supports 1.1M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3.6 Flash and GPT-6.1 Terra?

Key differences include LLM Stats Score (42.3 vs 47.5), context window (1.0M vs 1.1M), input pricing ($1.50 vs $1.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.6 Flash and GPT-6.1 Terra?

Gemini 3.6 Flash is developed by Google and GPT-6.1 Terra is developed by OpenAI.

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