Gemini 3.5 Flash Lite vs GPT-6 Astra
At a Glance
| Compare |  Gemini 3.5 Flash LiteGoogle DeepMind |  GPT-6 AstraOpenAI |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #39 of 4617.6 score · 3/3 sources · complete | #6 of 4684.4 score · 3/3 sources · complete |
| CostLower is better · Published-token output estimate | #8 of 44$0.029 per LiveBench case | #41 of 44$0.520 per LiveBench case |
| EfficiencyHigher is better · MM Efficiency v1.5 | #32 of 3846.2 score · 3/3 sources · complete | #27 of 3849.2 score · 3/3 sources · complete |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $0.30Google AI ↗ · Aug 29, 2026 | $10.00Openai ↗ · Sep 4, 2026 |
| Output priceFrom · USD / 1M tokens | $2.50Google AI ↗ · Aug 29, 2026 | $50.00Openai ↗ · Sep 4, 2026 |
| Context windowMaximum documented tokens | 1,049K | 1,050K |
| Model facts checked | Aug 29, 2026View model evidence → | Sep 4, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | Gemini 3.5 Flash-Lite | GPT-6 Astra |
|---|---|---|
| ARC-AGI-1verified-v1-ba05d69f6453 · verified_score · leader | 53.5054% of row best · percent · Gemini 3.5 Flash-Lite (High) | 98.50100% of row best · percent · GPT-6 Astra (XHigh) |
| ARC-AGI-2verified-v2-6c676fa3e9af · verified_score · leader | 10.2811% of row best · percent · Gemini 3.5 Flash-Lite (High) | 95.00100% of row best · percent · GPT-6 Astra (Max) |
| LMArena Agent Arenaagent-2026-09-15-d25aabda0010 · outcome_score · leader | -15.3576% of row best · score · Gemini 3.5 Flash Lite; 95% CI [-16.65525683, -14.04242266]; sessions 23248; observations 670178; rank 45 | 11.54100% of row best · score · GPT 6 Astra (Max); 95% CI [9.43393746, 13.63932109]; sessions 10372; observations 782334; rank 2 |
| LMArena Text Arenatext-2026-09-13-d25aabda0010 · arena_rating · statistical tie | 1,435.5499% of row best · rating · gemini-3.5-flash-lite; 95% CI [1430.59505493, 1440.49024696]; votes 26165; rank 79 | 1,443.72100% of row best · rating · gpt-6-astra-max; 95% CI [1432.08094427, 1455.36783662]; votes 2693; rank 59 |
| LMArena Vision Arenavision-2026-09-13-d25aabda0010 · arena_rating · statistical tie | 1,268.4299% of row best · rating · gemini-3.5-flash-lite; 95% CI [1258.88097193, 1277.96729164]; votes 5254; rank 37 | 1,278.58100% of row best · rating · gpt-6-astra-max; 95% CI [1261.64778832, 1295.50325714]; votes 1367; rank 30 |
| LiveBench2026-06-25 · overall · leader | 66.3577% of row best · percent · gemini-3.5-flash-lite-high · 11,526 output tokens / case | 86.47100% of row best · percent · gpt-6-astra-max · 10,407 output tokens / case |
| ToneBench2026-09-11-10-task-4ef099199c9c · overall_score · unverified | 73.4285% of row best · points · Gemini 3.5 Flash-Lite · 1,966 output tokens / case | 86.21100% of row best · points · GPT-6 Astra (max) · 14,778 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above · 2 ties | 0 benchmark wins | 4 benchmark winsOverall lead |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Side-by-Side Facts
| Field | Gemini 3.5 Flash-Lite | GPT-6 Astra |
|---|---|---|
| Developer | Google DeepMind | OpenAI |
| Family | Gemini 3 | Gpt 6 |
| Model | Gemini 3.5 Flash-Lite | GPT-6 Astra |
| Version | Gemini 3.5 Flash-Lite | GPT-6 Astra |
| Lifecycle | active | active |
| Released | Unknown | 2026-09-03 |
| Knowledge cutoff | Unknown | 2026-04-30 |
| Input modalities | Text, Image, Video, Audio, Document | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,049K | 1,050K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Google AI (Standard), Google Gemini (Standard) | Openai (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, computer-use, generation, reasoning, research, tools |
Gemini 3.5 Flash Lite Capabilities
GPT-6 Astra Capabilities
Related Comparisons
All text comparisons →| A | Pair | B | Context |
|---|---|---|---|
Gemini 3.5 Flash-LiteGoogle DeepMind | vs | GPT-5.6 SolOpenAI | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs | Gemini 3.5 Flash-LiteGoogle DeepMind | cross-developer peerstext |
Gemini 3.1 ProGoogle DeepMind | vs | Gemini 3.5 Flash-LiteGoogle DeepMind | family variantstext |
 DeepSeek-V4.1-FlashDeepSeek | vs | Gemini 3.5 Flash-LiteGoogle DeepMind | cross-developer peerstext |
Gemini 3.5 Flash-LiteGoogle DeepMind | vs | Grok 4.6xAI | cross-developer peerstext |
Gemini 3.5 Flash-LiteGoogle DeepMind | vs |  Qwen3.8-MaxQwen | cross-developer peerstext |
Gemini 3.5 Flash-LiteGoogle DeepMind | vs |  Kimi-K3Moonshot AI | cross-developer peerstext |
 MiniMax-M3MiniMax | vs | Gemini 3.5 Flash-LiteGoogle DeepMind | cross-developer peerstext |
Gemini 3.5 Flash-LiteGoogle DeepMind | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Gemini 3.5 Flash-LiteGoogle DeepMind | vs |  Hy4 previewTencent | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | Gemini 3.5 Flash-LiteGoogle DeepMind | cross-developer peerstext |
Gemini 3.5 Flash-LiteGoogle DeepMind | vs |  Mistral Large 3Mistral AI | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
Gemini 3.5 Flash Lite vs GPT-6 Astra FAQs
Is Gemini 3.5 Flash Lite or GPT-6 Astra better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Gemini 3.5 Flash Lite and GPT-6 Astra, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Gemini 3.5 Flash Lite or GPT-6 Astra?+
Gemini 3.5 Flash Lite is $0.30 and GPT-6 Astra is $10.00 per million tokens, so Gemini 3.5 Flash Lite is cheaper on this metric. Gemini 3.5 Flash Lite is $2.50 and GPT-6 Astra is $50.00 per million tokens, so Gemini 3.5 Flash Lite is cheaper on this metric.
Which has a larger context window, Gemini 3.5 Flash Lite or GPT-6 Astra?+
GPT-6 Astra has the larger sourced context window. Gemini 3.5 Flash Lite supports 1,049K and GPT-6 Astra supports 1,050K.
Which performs better in benchmarks, Gemini 3.5 Flash Lite or GPT-6 Astra?+
GPT-6 Astra leads the current overall benchmark count. The result uses 6 protocol-matched benchmarks from 3 publishers; it is not a universal quality score.
Can Gemini 3.5 Flash Lite or GPT-6 Astra be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Gemini 3.5 Flash Lite is not marked open weight; GPT-6 Astra is not marked open weight.
Can Gemini 3.5 Flash Lite and GPT-6 Astra understand images?+
Gemini 3.5 Flash Lite is documented with image input; GPT-6 Astra is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Gemini 3.5 Flash Lite or GPT-6 Astra?+
GPT-6 Astra has the larger sourced maximum output: Gemini 3.5 Flash Lite supports 66K and GPT-6 Astra supports 128K output tokens.
Do Gemini 3.5 Flash Lite and GPT-6 Astra support reasoning and tool use?+
Gemini 3.5 Flash Lite: reasoning, tool calling, and image input. GPT-6 Astra: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Gemini 3.5 Flash Lite or GPT-6 Astra?+
Gemini 3.5 Flash Lite has 2 sourced provider routes; GPT-6 Astra has 2, a tie.
Which offers better value, Gemini 3.5 Flash Lite or GPT-6 Astra?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.