Model Comparison

Gemini vs Claude in 2026: Benchmarks, Real Costs & Which to Pick

Gemini and Claude pull in different directions: Claude (Opus) is the stronger coder and instruction-follower, while Gemini wins on price, context window, and native multimodal. Neither is simply better — it depends on whether your bottleneck is code quality or cheap long-context multimodal throughput. This guide puts both on benchmarks, models what they actually cost across real workloads, and walks through worked scenarios so you can pick by job.

Gemini vs Claude — benchmarks, modeled costs, context window, and which to use

The short answer

Claude for coding and instruction-following; Gemini for price, context window, and multimodal. Claude Opus leads independent coding benchmarks; Gemini costs about half as much at the flagship, ingests more context, and is the stronger multimodal model. Pick by whether your bottleneck is code quality or cheap long-context throughput.

How this is sourced. SWE-bench is independent (vals.ai); prices are from each provider and the DataLLM Lab catalog, June 2026. The cost figures are our own model on the token assumptions noted. One section is first-party measurement: we ran Claude Sonnet 5 and Claude Opus 4.8 through our own executed coding harness. No Gemini model has been through it, so every Gemini figure here stays vendor-reported. Deeper dives: Gemini API guide, Claude API guide.

Side by side

Claude (Anthropic)Gemini (Google)
FlagshipOpus 4.8 / 4.7Gemini 3.1 Pro
SWE-bench Verified88.6% (Opus 4.8)Strong, below Opus
Flagship price (in/out)$5 / $25$2 / $12
Cheap tierHaiku $1 / $5Flash (very low)
Context window1M~1M+ (largest)
MultimodalVisionImage, audio, video + gen
Best atCoding, planningCheap long-context, multimodal

What we measured, and what we did not

Every other number on this page is a vendor price sheet or somebody else's benchmark. This section is ours. We ran 13 models through 9 executed Python tasks at temperature 0 and max_tokens 4000, scoring each by running the returned code against assertions the model never sees. Two Claude models were in that run. No Gemini model was.

ModelScore$ / 1,000 tasksAvg latency
Claude Sonnet 59/9$1.677.2 s
Claude Opus 4.89/9$4.056.1 s
Any Gemini modelnot tested
Qwen3 Coder Next (cheapest 9/9 in the run)9/9$0.107.0 s
GPT-5.5 (priciest 9/9 in the core sweep)9/9$8.8310.5 s

Two things there are not on any spec sheet. First, both Claude models returned the same perfect score, so the $4.05 Opus run bought no additional correctness over the $1.67 Sonnet run on this class of work — and Opus was the faster of the two, 6.1 s against 7.2 s, which inverts the usual assumption that the bigger model makes you wait. Second, both Claude models emitted zero reasoning tokens on these tasks, so there is no hidden thinking-token surcharge sitting on top of those billed figures. Across the whole run, 10 of 13 models scored 9/9, from $0.10 to $8.83 — an 88x spread for identical output.

The Gemini side of this article is vendor-reported or third-party throughout. We have no first-party figure for any Gemini model: not a score, not a cost per thousand tasks, not a latency. Where Gemini sits next to Claude in the tables above and below, only the Claude cells were measured by us. An empty column is more useful than an estimated one.

What this does not tell you. The nine tasks are short, self-contained Python functions: two_sum, valid_parentheses, merge_intervals, roman_to_int, lcs_len, flatten, top_k_words, token_bucket, parse_csv_line. A perfect score means the model writes small correct functions first try. It says nothing about long-context reasoning, multi-file refactoring, agentic tool use, or non-Python work — and nothing at all about the two axes this article gives to Gemini, context window and multimodal. Full run: 13 models, 9 executed coding tasks. How it was scored: our methodology.

Pricing

Gemini is roughly half Claude's price at the flagship tier — the clearest practical difference:

Flagship output price per 1M tokensJune 2026Claude Opus 4.8$25GPT-5.4$15Gemini 3.1 Pro$12
Chart: DataLLM Lab — flagship output price per 1M tokens, June 2026. Gemini 3.1 Pro (highlighted) is about half the cost of Claude Opus.

What they cost to run

Output price is one number; the real bill depends on your traffic shape. Here's the modeled monthly cost across five workloads:

Monthly workloadClaude Opus 4.8Claude Sonnet 5Gemini 3.1 ProClaude Haiku 4.5
Support chatbot$500$200$224$100
RAG / knowledge base$1,500$600$640$300
Coding agent$1,025$410$460$205
Batch extraction$950$380$396$190
Content generation$1,100$440$520$220
Methodology. Cost = input_price × input volume + output_price × output volume. Monthly volumes: Support chatbot 40M in / 12M out, RAG 200M / 20M, Coding agent 80M / 25M, Batch extraction 150M / 8M, Content generation 20M / 40M.

On a RAG workload, Gemini 3.1 Pro runs about $640/month versus $1,500 for Claude Opus — and Claude's own cheap tier (Haiku) is cheaper still where its quality suffices. The pattern: Gemini wins flagship-vs-flagship on cost, but it does not win the whole table — Claude Sonnet 5 at $2/$10 undercuts Gemini 3.1 Pro's $2/$12 on every row here. Within Claude, dropping a tier is a bigger lever than switching vendors.

Where Claude wins

One correction from our own run, though: which Claude you pick matters less than the flagship framing implies. On nine executed Python tasks, Claude Sonnet 5 and Claude Opus 4.8 both scored 9/9, at $1.67 and $4.05 per 1,000 tasks. The Opus premium is for work harder than routine function-writing, not for routine function-writing.

Where Gemini wins

Worked scenarios

Scenario Document-analysis app

  • Big inputs, cost-sensitive → Gemini — largest context + low input price ingest whole documents cheaply.

Scenario Production coding agent

  • Quality first → Claude, but start at Sonnet 5: it matched Opus 4.8 at 9/9 in our run, $1.67 vs $4.05 per 1,000 tasks. Escalate to Opus only where Sonnet visibly fails.

Scenario Multimodal product

  • Image/audio/video → Gemini, the broader, cheaper multimodal model.

Scenario Budget chatbot

  • Cost dominates → Gemini Flash or Claude Haiku. Modeled: Haiku $100/mo against $500 for Opus on the same chatbot traffic; Flash is not in our cost model, but it prices below the $224 Gemini 3.1 Pro line.

Which to pick by job

Coding

  • Claude for quality, but try Sonnet 5 before Opus — both hit 9/9 in our executed run. See best coding LLM.

Long context / RAG

Multimodal

  • Gemini for image/audio/video understanding and generation.

Best move Route both

  • Claude for code, Gemini for cheap long-context — one key.

Run Gemini and Claude side by side

Gemini 3.1 Pro, Claude Opus 4.7, and 300+ more — one OpenAI-compatible key, live price comparison, route per request.

FAQ

Is Gemini better than Claude?

Task-dependent. Claude Opus leads coding (88.6% SWE-bench) and instruction-following; Gemini wins price (~half), context window, and multimodal. Coding → Claude; cheap long-context multimodal → Gemini.

Is Gemini or Claude cheaper?

Gemini — 3.1 Pro ~$2/$12 vs Claude Opus $5/$25. On a RAG workload, Gemini ~$640/mo vs Opus $1,500. Gemini Flash and Claude Haiku are both cheap on the low tier.

Gemini or Claude for coding?

Claude — Opus leads SWE-bench and planning. Gemini is a strong, much cheaper budget coder, but Claude is the quality pick.

Which has the bigger context window?

Gemini — its Pro models offer the largest context (~1M+, historically up to 2M), ahead of or matching Claude's 1M, at lower cost per token.

Gemini or Claude for multimodal?

Gemini — built multimodal-first with strong image/audio/video and image generation. Claude has solid vision but Gemini is broader and cheaper.

Gemini or Claude for long documents?

Gemini — largest context window plus low input price is ideal for analyzing/rewriting big documents in one pass. Claude's 1M is capable but costs more per token.

Can I use both with one API?

Yes — via an OpenAI-compatible gateway like DataLLM Lab you reach Gemini 3.1 Pro and Claude Opus 4.7 (and 300+ others) with one key and route by task.

Is Gemini good enough to replace Claude for coding?

For routine coding at a fraction of the price, often yes. For the hardest agentic coding, Claude Opus still leads — route Gemini for the bulk, escalate to Claude on hard tasks.

Written by

Founder of DataLLM Lab, the unified LLM gateway. Kevin tests models the boring way — same prompts, real costs, unedited outputs — and writes up what the runs actually show. Articles are drafted with AI assistance and published under his name; every first-party number comes from an executed run.

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