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Gemini 3.7 Flash vs GPT-5.6 Terra

Gemini 3.7 Flash has a slight edge in benchmark performance. Gemini 3.7 Flash is 3.0x cheaper per token.

Google · OpenAI · Updated for 2026

Which is better?

Gemini 3.7 Flash outperforms in 5 benchmarks (Artificial Analysis, AutomationBench, FrontierCode 1.1, GDP.pdf, MRCR v2 (8-needle)), while GPT-5.6 Terra is better at 4 benchmarks (Agents' Last Exam, DeepSWE 1.1, OSWorld 2.0, Terminal-Bench 2.1). Gemini 3.7 Flash has a slight edge in benchmark performance.

On price, Gemini 3.7 Flash is roughly 3.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-5.6 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 benchmark, pricing, and model metadata for 2026.

Choose Gemini 3.7 Flash

  • you want the strongest raw capability — it leads on 5 of 9 shared benchmarks
  • cost matters — it's about 3.0x cheaper per token
  • you want the most recent training data — it shipped Aug 2026

Choose GPT-5.6 Terra

  • you process long inputs — it offers a 1,050,000 token context window

At a glance

The differences that matter most.

Gemini 3.7 Flash
Google
GPT-5.6 Terra
OpenAI
Benchmark wins
5 of 9
4 of 9
Input price
$0.75 / M
$2.00 / M
Output price
$3.75 / M
$12.00 / M
Context window
1,048,576
1,050,000
Released
Aug 2026
Jul 2026
License
Proprietary
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

9 benchmarks

Gemini 3.7 Flash outperforms in 5 benchmarks (Artificial Analysis, AutomationBench, FrontierCode 1.1, GDP.pdf, MRCR v2 (8-needle)), while GPT-5.6 Terra is better at 4 benchmarks (Agents' Last Exam, DeepSWE 1.1, OSWorld 2.0, Terminal-Bench 2.1).

Gemini 3.7 Flash has a slight edge in benchmark performance.

Thu Aug 27 2026 • llm-stats.com

Arena Performance

Playground indexes and blind preference scores

Pricing Analysis

Price comparison per million tokens

Gemini 3.7 Flash costs less

For input processing, Gemini 3.7 Flash ($0.75/1M tokens) is 2.7x cheaper than GPT-5.6 Terra ($2.00/1M tokens).

For output processing, Gemini 3.7 Flash ($3.75/1M tokens) is 3.2x cheaper than GPT-5.6 Terra ($12.00/1M tokens).

In conclusion, GPT-5.6 Terra is more expensive than Gemini 3.7 Flash.*

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

Lowest available price from all providers
Thu Aug 27 2026 • llm-stats.com
Google
Gemini 3.7 Flash
Input tokens$0.75
Output tokens$3.75
Best providerGoogle
OpenAI
GPT-5.6 Terra
Input tokens$2.00
Output tokens$12.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5.6 Terra accepts 1,050,000 input tokens compared to Gemini 3.7 Flash's 1,048,576 tokens. GPT-5.6 Terra can generate longer responses up to 128,000 tokens, while Gemini 3.7 Flash is limited to 65,536 tokens.

Google
Gemini 3.7 Flash
Input1,048,576 tokens
Output65,536 tokens
OpenAI
GPT-5.6 Terra
Input1,050,000 tokens
Output128,000 tokens
Thu Aug 27 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3.7 Flash and GPT-5.6 Terra support multimodal inputs.

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

Gemini 3.7 Flash

Text
Images
Audio
Video

GPT-5.6 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 3.7 Flash

Proprietary

Closed source

GPT-5.6 Terra

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.7 Flash was released on 2026-08-13, while GPT-5.6 Terra was released on 2026-07-09.

Gemini 3.7 Flash is 1 month newer than GPT-5.6 Terra.

Gemini 3.7 Flash

Aug 13, 2026

2 weeks ago

1mo newer
GPT-5.6 Terra

Jul 9, 2026

1 months ago

Knowledge Cutoff

When training data ends

Gemini 3.7 Flash has a knowledge cutoff of 2026-03-31, while GPT-5.6 Terra has a cutoff of 2026-02-16.

Gemini 3.7 Flash has more recent training data (up to 2026-03-31), making it potentially better informed about events through that date compared to GPT-5.6 Terra (2026-02-16).

Gemini 3.7 Flash

Mar 2026

1 mo newer
GPT-5.6 Terra

Feb 2026

Provider Availability

Gemini 3.7 Flash is available from Google. GPT-5.6 Terra is available from OpenAI.

Gemini 3.7 Flash

google logo
Google
Input Price:Input: $0.75/1MOutput Price:Output: $3.75/1M

GPT-5.6 Terra

openai logo
OpenAI
Input Price:Input: $2.00/1MOutput Price:Output: $12.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini 3.7 Flash and GPT-5.6 Terra side-by-side, then vote on the output you prefer.

Gemini 3.7 Flash
✓ Preferred
GPT-5.6 Terra
Open in Playground

FAQ

Common questions about Gemini 3.7 Flash vs GPT-5.6 Terra.

Which is better, Gemini 3.7 Flash or GPT-5.6 Terra?

Gemini 3.7 Flash has a slight edge in benchmark performance. Gemini 3.7 Flash is made by Google and GPT-5.6 Terra is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3.7 Flash compare to GPT-5.6 Terra in benchmarks?

Gemini 3.7 Flash scores MRCR v2 (8-needle): 97.0%, Harvey LAB-AA: 90.7%, CharXiv-R: 88.7%, Terminal-Bench 2.1: 85.8%, LVBench: 85.4%. GPT-5.6 Terra scores Connectors: 100.0%, HealthBench Consensus: 95.1%, Search and Function-Calling: 94.6%, GPQA: 92.9%, Capture-the-Flag Challenges (Internal): 91.8%.

Is Gemini 3.7 Flash cheaper than GPT-5.6 Terra?

Gemini 3.7 Flash is 2.7x cheaper for input tokens. Gemini 3.7 Flash costs $0.75/M input and $3.75/M output via google. GPT-5.6 Terra costs $2.00/M input and $12.00/M output via openai.

What are the context window sizes for Gemini 3.7 Flash and GPT-5.6 Terra?

Gemini 3.7 Flash supports 1.0M tokens and GPT-5.6 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 3.7 Flash and GPT-5.6 Terra?

Key differences include context window (1.0M vs 1.1M), input pricing ($0.75 vs $2.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.7 Flash and GPT-5.6 Terra?

Gemini 3.7 Flash is developed by Google and GPT-5.6 Terra is developed by OpenAI.

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