Gemini 3.7 Flash vs GPT-5.4

Google · US  |  OpenAI · US · Updated June 2026

Quick verdict

Pick Gemini 3.7 Flash for strong intelligence-per-dollar - artificial analysis intelligence index 56 at introductory $0.75/$3.75 pricing or 1m-token context with full multimodal input (text, image, audio, video). Pick GPT-5.4 for strong general-purpose default or coding and software engineering. On a tight budget at scale, Gemini 3.7 Flash is the value pick.

Gemini 3.7 Flash (Google) and GPT-5.4 (OpenAI) are two of the models people most often weigh against each other in 2026. Gemini 3.7 Flash is google's cheap, fast coding-and-agents workhorse - AA Index 56, a 1M context, and aggressive introductory pricing that beats GPT-5.6 Terra on value and speed. GPT-5.4 is openAI's 2026 workhorse — unifies Codex and GPT into a strong default that costs half of GPT-5.5. They diverge most on price and context window — each quantified below from the models' real specs.

Key differences at a glance

Side-by-side specs

SpecGemini 3.7 FlashGPT-5.4
ProviderGoogle (US) OpenAI (US)
ReleasedAugust 13, 2026 March 5, 2026
Context window1M (~1,573 pages) 1M (~1,500 pages)
Price (in/out)$0.75/$3.75 per 1M tokens $2.5/$15 per 1M tokens
Open weight?No — API only No — API only
Modalitiestext, image, audio, video, code text, image, code
SWE-Bench VerifiedNot published Not published
MRCR v2 @ 1MNot published Not published

Who wins what

Strong intelligence-per-dollar - Artificial Analysis Intelligence Index 56 at introductory $0.75/$3.75 pricing

Gemini 3.7 Flash

Google's cheap, fast coding-and-agents workhorse - AA Index 56, a 1M context, and aggressive introductory pricing that beats GPT-5.6 Terra on value and speed — and it runs cheaper at $0.75/$3.75 per 1M tokens.

1M-token context with full multimodal input (text, image, audio, video)

Gemini 3.7 Flash

Google's cheap, fast coding-and-agents workhorse - AA Index 56, a 1M context, and aggressive introductory pricing that beats GPT-5.6 Terra on value and speed — and it is the newer of the two.

Built for coding and agents, with roughly 3x faster output than GPT-5.6 Terra

Gemini 3.7 Flash

Gemini 3.7 Flash lists built for coding and agents, with roughly 3x faster output than GPT-5.6 Terra among its strengths; GPT-5.4 does not.

Strong general-purpose default

GPT-5.4

GPT-5.4 lists strong general-purpose default among its strengths; Gemini 3.7 Flash does not.

Coding and software engineering

GPT-5.4

Gemini 3.7 Flash is comparatively weak here — trails GPT-5.6 Terra on the hardest repo-scale and terminal-agent coding

Document understanding and tool use

GPT-5.4

GPT-5.4 lists document understanding and tool use among its strengths; Gemini 3.7 Flash does not.

Lowest cost at scale

Gemini 3.7 Flash

At $0.75/$3.75 per 1M tokens, it is the cheaper of the two — the gap dominates the bill on high-volume workloads.

Which should you pick?

A cost-sensitive startup shipping high volume

Gemini 3.7 Flash

At $0.75/$3.75 per 1M tokens it undercuts GPT-5.4, and on millions of tokens that margin decides the monthly bill.

Someone analysing very long documents or codebases

Gemini 3.7 Flash

Larger 1M window fits more in one prompt.

Anyone whose priority is strong intelligence-per-dollar - artificial analysis intelligence index 56 at introductory $0.75/$3.75 pricing

Gemini 3.7 Flash

It is specifically built for that.

Anyone whose priority is strong general-purpose default

GPT-5.4

That is its strongest area.

Gemini 3.7 Flash: where it fits

Google's cheap, fast coding-and-agents workhorse - AA Index 56, a 1M context, and aggressive introductory pricing that beats GPT-5.6 Terra on value and speed. Released August 13, 2026 by Google, it is built for strong intelligence-per-dollar - Artificial Analysis Intelligence Index 56 at introductory $0.75/$3.75 pricing, 1M-token context with full multimodal input (text, image, audio, video), built for coding and agents, with roughly 3x faster output than GPT-5.6 Terra, and wins broad-coding and web-development benchmarks against GPT-5.6 Terra.

Its trade-offs are real: introductory pricing ($0.75/$3.75) reverts to $1.50/$7.50 on Jan 1, 2027, trails GPT-5.6 Terra on the hardest repo-scale and terminal-agent coding, a fast 'workhorse,' not Google's top-intelligence model (Gemini 3.1 Pro is still the flagship), and some benchmark gains are Google's own figures. At $0.75 in / $3.75 out per million tokens, it sits in the budget price band.

GPT-5.4: where it fits

OpenAI's 2026 workhorse — unifies Codex and GPT into a strong default that costs half of GPT-5.5. Released March 5, 2026 by OpenAI, it is built for strong general-purpose default, coding and software engineering, document understanding and tool use, and 1M context with good token efficiency.

Its trade-offs: topped by GPT-5.5 on the hardest tasks, and pricier than open-weight rivals. At $2.5 in / $15 out per million tokens, it sits in the mid price band.

The bottom line for this matchup

Gemini 3.7 Flash and GPT-5.4 overlap enough that the right pick depends on your specific job. Gemini 3.7 Flash costs less per token; Gemini 3.7 Flash holds the larger context; and each leads in its own area — Gemini 3.7 Flash for strong intelligence-per-dollar - artificial analysis intelligence index 56 at introductory $0.75/$3.75 pricing, GPT-5.4 for strong general-purpose default. Rather than crowning one, run the same hard task through both once and let the results decide.

Want both Gemini 3.7 Flash and GPT-5.4 without two subscriptions? LumiChats gives you these plus 40+ models under one ₹69/day pass (about $1/day) — draft with one, cross-check with the other.

See pricing

Frequently asked questions

Is Gemini 3.7 Flash or GPT-5.4 better for coding?

Public SWE-Bench figures are not available for either model, so the honest test is your own repository — run an identical real bug through both. By design, Gemini 3.7 Flash leans toward strong intelligence-per-dollar - artificial analysis intelligence index 56 at introductory $0.75/$3.75 pricing while GPT-5.4 leans toward strong general-purpose default, and that positioning usually predicts which feels better on your codebase.

Which is cheaper, Gemini 3.7 Flash or GPT-5.4?

Gemini 3.7 Flash is cheaper — $0.75/$3.75 per 1M tokens vs $2.5/$15 per 1M tokens, roughly 3.3× apart on input.

Which has the bigger context window?

Effectively neither — 1M vs 1M is a difference of a few percent. Remember advertised ≠ usable: recall typically degrades before the ceiling.

Can I use both Gemini 3.7 Flash and GPT-5.4 together?

Yes — a multi-model platform like LumiChats gives you Gemini 3.7 Flash, GPT-5.4 and 40+ others under one ₹69/day pass (about $1/day), so you can draft with one and cross-check with the other instead of buying two subscriptions.

Which is newer, Gemini 3.7 Flash or GPT-5.4?

Gemini 3.7 Flash — released August 13, 2026, about 5 months after GPT-5.4.

Related comparisons

Specifications and benchmarks reflect publicly reported figures as of June 2026 and may change as providers release updates. Always verify on your own workload.